European Journal of Inorganic Chemistry

Cover image for Vol. 2014 Issue 30

Early View (Online Version of Record published before inclusion in an issue)

Editor: Karen Hindson, Deputy Editor: Preeti Vashi

Impact Factor: 2.965

ISI Journal Citation Reports © Ranking: 2013: 10/44 (Chemistry Inorganic & Nuclear)

Online ISSN: 1099-0682

Associated Title(s): Angewandte Chemie International Edition, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemCatChem, Zeitschrift für anorganische und allgemeine Chemie


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  1. Cover Profile

    1. Synthesis of Atomically Precise Silver Clusters by Using the Miscibility Principle (page 5252)

      Atanu Ghosh and Thalappil Pradeep

      Article first published online: 22 OCT 2014 | DOI: 10.1002/ejic.201402985

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      We envisaged that mixing different solvents in certain compositions could be an alternative to the use of a phase transfer reagent and such a method could result in different atomically precise clusters at different solvent compositions...

      Read more about the story behind the cover in the Cover Profile and about the research itself on p. 5271 ff.

  2. Corrections

    1. You have free access to this content
      Impact of the Presence of Octadecylamine on the Properties of Hydrothermally Prepared CoFe2O4 Nanoparticles

      Violetta Georgiadou and Catherine Dendrinou-Samara

      Article first published online: 22 OCT 2014 | DOI: 10.1002/ejic.201402906

      This article corrects:

      Impact of the Presence of Octadecylamine on the Properties of Hydrothermally Prepared CoFe2O4 Nanoparticles

      Vol. 2014, Issue 23, 3645–3656, Article first published online: 18 JUN 2014

  3. Short Communications

    1. Oxidation

      Halogenolysis of a Nickelalactone Complex Produces β-Halo-Anhydrides

      Ryan A. Zarkesh, Michael D. Hopkins and Richard F. Jordan

      Article first published online: 21 OCT 2014 | DOI: 10.1002/ejic.201402952

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      Nickelalactone complex [(dppe)Ni{κ2-C,O-CH2CH2C(=O)O}] {1, dppe = 1,2-bis(diphenylphosphino)ethane} reacts with halogens to produce 3-halo-propionic anhydrides, [(dppe)NiX2], and [(dppeO2)3Ni][NiX4] (X = Cl, Br, I). Studies of model complexes [(dppe)Ni(O2CtBu)2] and [(dppe)NiBr(O2CtBu)] suggest oxidation of nickel(II) to nickel(III) and subsequent P–O reductive elimination to be the key steps.

    2. Uranyl Chromates

      Isolated Uranyl Chromate and Polychromate Units in Crown Ether Templated Compounds

      Oleg I. Siidra, Evgeny V. Nazarchuk, Elena V. Sysoeva, Roman A. Kayukov and Wulf Depmeier

      Article first published online: 21 OCT 2014 | DOI: 10.1002/ejic.201402806

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      Two new uranyl chromate compounds are obtained as low-temperature phases by solvent evaporation from aqueous solutions. Both compounds are based on novel 0D isolated uranyl chromate and polychromate units.

  4. Full Papers

    1. Spin Ladders

      S = 2 Spin Ladders in the Sulfide Oxide BaFe2S2O

      Martin Valldor, Peter Adler, Yurii Prots, Ulrich Burkhardt and Liu Hao Tjeng

      Article first published online: 21 OCT 2014 | DOI: 10.1002/ejic.201402805

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      The sulfide oxide BaFe2S2O contains spin ladders of tetrahedrally coordinated high-spin Fe2+ (d6). The Fe ion is thereby surrounded by three S and one O atoms. Below the Néel transition (TN = 260 K), it is assumed that the crystal lattice distorts and the geometrical frustration between the spin ladders is cancelled.

    2. Chromium Dimer

      Synthesis, Characterisation and Modelling of a Ferromagnetically Coupled Chromium(III) Dimer: Di-μ-hydroxobis[tetrakis(isothiocyanato)chromate(III)]

      Thorbjørn J. Morsing, Høgni Weihe and Jesper Bendix

      Article first published online: 21 OCT 2014 | DOI: 10.1002/ejic.201402779

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      The di-μ-hydroxobis[tetrakis(isothiocyanato)chromate(III)] ion has been isolated and investigated by EPR spectroscopy. The magnetic susceptibility was measured in the temperature range 2–300 K. Both experiments show this system to be ferromagnetically coupled with a septet ground state. This is the third example of a ferromagnetically coupled CrIII dimer, the first to be investigated by EPR.

    3. Mixed Oxides

      1D Heterometallic Oxalate Compounds as Precursors for Mixed Ca–Cr Oxides – Synthesis, Structures, and Magnetic Studies

      Lidija Androš, Marijana Jurić, Jasminka Popović, Damir Pajić, Krešo Zadro, Krešimir Molčanov, Dijana Žilić and Pavica Planinić

      Article first published online: 15 OCT 2014 | DOI: 10.1002/ejic.201402644

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      The heat treatment of {[CaCr2(L)2(C2O4)4]·xH2O}n [L = 2,2′-bipyridine, x = 0.83 (1) and 1,10-phenanthroline, x = 0.33 (2)] at 1100 °C in a nitrogen flow resulted in the isolation of the β-CaCr2O4 phase, whereas heating at 1400 °C caused the crystallization of two polymorphs, α-CaCr2O4 and β-CaCr2O4. The spectroscopic, structural and magnetic properties of the single-source precursors and the β phase are investigated.

    4. Heterobimetallic Complexes

      Lithium Complexes of Asymmetric Hydrogen Tetraimido Sulfate

      Julia Matussek, Regine Herbst-Irmer and Dietmar Stalke

      Article first published online: 15 OCT 2014 | DOI: 10.1002/ejic.201402624

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      Asymmetrically substituted hydrogen tetraimido sulfate ligands provide two opportunities to generate metal complexes. Firstly, the lithium metal can be exchanged in a transmetalation reaction, and secondly, the proton can be replaced by an additional substituent or another metal. This gives access to heterobimetallic complexes.

    5. Heterometallic Complexes

      Mono-Oxido-Bridged Heterobimetallic and Heterotrimetallic Compounds Containing Titanium(IV) and Chromium(III)

      Tao Huang, Xinyuan Wu, Walter W. Weare and Roger D. Sommer

      Article first published online: 15 OCT 2014 | DOI: 10.1002/ejic.201402800

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      A series of heterobi- and heterotrimetallic molecules containing an unsupported oxido bridge have been synthesized. The molecular structures are controlled by the stoichiometry of the reagents, and the heterotrimetallic structural motif Ti=O[RIGHTWARDS ARROW]Cr[LEFTWARDS ARROW]O=Ti is hitherto unknown. Electrochemistry and magnetic studies were performed to identify the intermediates and their thermodynamic properties.

    6. Dual Fluorescent Probe

      Structurally Characterized Antipyrine-Based Dual Fluorescent Probe: Enhanced AlIII Selectivity of a Dinuclear ZnII Complex for Intracellular Sensing by a Displacement Approach

      Sisir Lohar, Archya Sengupta, Ansuman Chattopadhyay, Jesús Sanmartín Matalobos and Debasis Das

      Article first published online: 15 OCT 2014 | DOI: 10.1002/ejic.201402702

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      The antipyrine-based fluorescent probe daph recognizes both Zn2+ and Al3+ at two different wavelengths. However, Al3+ selectivity is enhanced significantly when the corresponding ZnII-daph complex is used as a sensor. Moreover, the detection limit of the ZnII-daph complex for Al3+ is higher than that of free daph. Both daph and ZnII-daph are capable of intracellular Al3+ detection.

    7. Boratabenzene Complexes

      Generation of Group VI Piano-Stool and Triple-Decker Complexes from [(IMes)2PtH(Cl-boratabenzene)] Species

      Viridiana Pérez, Stephanie S. Barnes and Frédéric-Georges Fontaine

      Article first published online: 15 OCT 2014 | DOI: 10.1002/ejic.201402691

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      Group VI piano-stool and triple-decker complexes of a Cl-boratabenzene ligand were prepared. All species were spectroscopically characterized and the first X-ray structure of the Cl-boratabenzene triple-decker complex is reported.

    8. Dialdimininato Ligands

      A Tetradentate β-Diiminato Ligand Containing Phenolate Substituents: Flexivalent Coordination to MnIII, CoIII, NiII, and CuII

      Fadhil Lafta Faraj, Hamid Khaledi, Yuma Morimoto, Shinobu Itoh, Marilyn M. Olmstead and Hapipah Mohd Ali

      Article first published online: 14 OCT 2014 | DOI: 10.1002/ejic.201402745

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      meso-Substituted dialdimine/dialdiminate acts as a di- or trianionic N2O2 ligand and exhibits redox-non-innocent character.

    9. Solid-State Structures

      On the Preparation and Structure of Caesium Aluminium Tetrahydride

      Daniel Krech, Bodo Zibrowius, Claudia Weidenthaler and Michael Felderhoff

      Article first published online: 14 OCT 2014 | DOI: 10.1002/ejic.201402629

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      The transformation of a newly observed tetragonal polymorph of CsAlH4 into the previously described orthorhombic CsAlH4 phase can be induced by thermal treatment. The reverse transformation can be induced by mechanical treatment. Both phases were characterized by X-ray diffraction and 27Al and 133Cs MAS NMR spectroscopy.

    10. Nanomaterials

      High Adsorption Capacity for Cationic Dye Removal and Antibacterial Properties of Sonochemically Synthesized Ag2WO4 Nanorods

      Dimple P. Dutta, Anamika Singh, Anand Ballal and Avesh K. Tyagi

      Article first published online: 14 OCT 2014 | DOI: 10.1002/ejic.201402612

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      Sonochemically synthesized α-Ag2WO4 nanorods exhibit superior sorption affinity for cationic dyes such as rhodamine B and methylene blue and also display good antibacterial activity.

    11. Anticancer Agents

      Seleno-Nucleobases and Their Water-Soluble Ruthenium–Arene Half-Sandwich Complexes: Chemistry and Biological Activity

      Raja Mitra, Anup K. Pramanik and Ashoka G. Samuelson

      Article first published online: 14 OCT 2014 | DOI: 10.1002/ejic.201402412

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      Water-soluble bioorganometallic ruthenium complexes with seleno-nucleobases have been studied. The complex with 6-selenoguanine is shown to be more stable, although less cytotoxic, relative to the free ligand.

  5. Microreviews

    1. Carbon Materials

      Ionic Liquid Based Approaches to Carbon Materials Synthesis

      Zai-Lai Xie and Dang Sheng Su

      Article first published online: 14 OCT 2014 | DOI: 10.1002/ejic.201402607

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      Ionic liquids are currently established solvents, precursors for carbon materials, and components of carbon-based ionogels. The unique properties of ionic liquids are beneficial for the formation of unusual carbon materials or composites with homogeneous heteroatom doping (e.g., N, B, S) and controllable porosity.

  6. Full Papers

    1. Functionalized Calixarenes

      An Insight into the Complexation of Pyrazine-Functionalized Calix[4]arenes with Am3+ and Eu3+ – Solvent Extraction and Luminescence Studies in Room-Temperature Ionic Liquids

      Seraj A. Ansari, Prasanta K. Mohapatra, Arijit Sengupta, Nicolai I. Nikishkin, Jurriaan Huskens and Willem Verboom

      Article first published online: 10 OCT 2014 | DOI: 10.1002/ejic.201402596

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      Complexation of Am3+ and Eu3+ with six pyrazine-functionalized calix[4]arene ligands was investigated in room-temperature ionic liquids (RTIL) by carrying out solvent extraction as well as luminescence (only for Eu3+) studies. Solvent extraction with RTIL resulted in a large enhancement in D values, and the nature of the complexes was investigated by luminescence spectroscopy.

    2. Pd and Pd Complexes

      Palladium(II) and Platinum(II) Complexes Containing Six-Membered N-Heterocyclic Ligands: Synthesis, Characterization, Interaction with DNA, DFT Calculation, and Cytotoxicity

      Ya-guang Sun, Ying Guo, Di Sun, Ming-chang Zhu, Fu Ding, Yi-nan Liu, En-jun Gao, Shu-ju Wang, Gang Xiong, Ileana Dragutan and Valerian Dragutan

      Article first published online: 10 OCT 2014 | DOI: 10.1002/ejic.201402532

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      A series of bioactive experiments have revealed four Pd and Pt complexes exhibit good biological activity towards DNA. The in vitro cytotoxicity of these complexes was investigated against two different cancer cell lines, showing good cytotoxic activity.

    3. Alkaline Earth Metals

      Assemblies of Alkaline-Earth-Metal Ions with o-Tetramethyl-Substituted Cucurbituril in the Presence of the Cadmium Tetrachloride Anion

      Jia-Jia Zhou, Xin Yu, Ying-Chun Zhao, Xin Xiao, Yun-Qian Zhang, Sai-Feng Xue, Zhu Tao, Jing-Xin Liu and Qian-Jiang Zhu

      Article first published online: 9 OCT 2014 | DOI: 10.1002/ejic.201402442

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      Coordination assemblies have been investigated by reactions between alkaline earth cations and o-tetramethyl-substituted cucurbituril (o-TMeQ[6]) in the presence of [CdCl4]2–, a structure inducer, in HCl aqueous solution. [CdCl4]2– forms honeycomb-like frameworks, which assist metal ions in coordinating to o-TMeQ[6].

    4. Chiral Magnetic Cu Clusters

      Copper(II) Clusters of Two Pairs of 2,3-Dihydroxybutanedioyl Dihydrazones: Synthesis, Structure, and Magnetic Properties

      Zilu Chen, Suping Zhou, Yanling Shen, Huahong Zou, Dongcheng Liu and Fupei Liang

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402784

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      Six chiral clusters of two pairs of 2,3-dihydroxybutanedioyl dihydrazones, four of which represent the first examples of chiral clusters bearing dicubane cores, are presented. All six compounds are enantiomers of each other. Magnetic studies reveal the presence of overall antiferromagnetic interactions in these compounds.

    5. Mesoporous Materials

      High-Temperature Synthesis of Ordered Hexagonal Mesoporous Silica Materials (SBA-15) with Adjustable Large Mesopores for Selective Adsorption of Biomolecules

      Pengling Zhang, Zhuofu Wu, Tongxin Liu and Zhengqiang Li

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402511

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      This paper describes a new method for preparing ordered hexagonal mesoporous SBA-15, with large adjustable mesopores, in the presence of inorganic salts and explores their application in selective adsorption of biomolecules.

    6. Polyoxometalates

      Gas-Phase Fragmentation Reactions of Keggin-Type {PW11O39M} (M = Rh, Ir, and Ru) Polyoxometalates as Fingerprints of the Ligands Attached at the Noble Metal Site

      Cristian Vicent, Sergey A. Adonin, Alexander V. Anyushin, Dmitry A. Mainichev and Maxim N. Sokolov

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402521

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      The gas-phase fragmentation reactions of Keggin-type {PW11O39ML} (M = Rh, Ir) polyoxometalates (POMs) under collision-induced dissociation (CID) conditions are diagnostic of the ligand attached at the noble metal site. This is illustrated for several ligands such as chloride, thiocyanate, nitrite or metalated ligands and also extended to new Keggin-type {PW11O39RuL} POMs (L = thiocyanate and CO).

    7. Ultrasonic Agitation

      Effects of Ultrasonic Agitation on the Structural and Magnetic Properties of CoFe2O4 Nanocrystals

      Anielle Christine Almeida Silva, Xavier Gratens, Valmir Antonio Chitta, Sinésio Domingues Franco, Ricardo Souza da Silva, José Fernando Condeles and Noelio Oliveira Dantas

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402563

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      In this work, we have demonstrated that ultrasonic agitation favors the formation of CoFe2O4 nanocrystals with uniform size and high magnetization. We confirmed these results by means of X-ray diffraction, scanning electron microscopy, IR spectroscopy, and magnetization measurements.

    8. Zirconia Nanoparticles

      Microwave-Assisted Synthesis, Characterisation and Dielectric Properties of Nanocrystalline Zirconia

      Rudolf C. Hoffmann, Mareiki Kaloumenos, Emre Erdem, Stefan Weber and Jörg J. Schneider

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402634

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      Transparent, stable dispersions of zirconia nanoparticles can be obtained using basic zirconium acetate as precursor. These are suitable for the manufacture of dielectric thin films. Their electrical performance is strongly influenced by the processing and environmental conditions. Electron paramagnetic resonance spectroscopy is a valuable tool to understand these effects.

    9. Metalloporyphyrins

      β-Tetrasubstituted meso-Tetra(4′-n-butyl­phenyl)porphyrins and Their Metal Complexes: Synthesis and Structural Properties

      Puttaiah Bhyrappa, Ujwal K. Sarangi, Veerapandian Velkannan and Venkatachalam Ramkumar

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402661

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      The synthesis of a series of β-tetra(phenylethynyl/4′-methoxyphenyl/4′-carboxymethylesterphenyl)-meso-tetra(4′-n-butylphenyl)porphyrins and their metal complexes is reported. Single-crystal XRD analysis show interesting structural and intermolecular interactions in the solid state, and electrochemical redox properties show an anodic shift in redox potentials relative to their corresponding MTPPs (metallotetraphenylporphyrins).

    10. Asymmetric Epoxidation

      A Mononuclear Manganese Complex of a Tetradentate Nitrogen Ligand – Synthesis, Characterizations, and Application in the Asymmetric Epoxidation of Olefins

      Duyi Shen, Chengxia Miao, Shoufeng Wang, Chungu Xia and Wei Sun

      Article first published online: 8 OCT 2014 | DOI: 10.1002/ejic.201402663

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      A chiral manganese complex bearing a tetradentate nitrogen ligand with chiral bipyrrolidine and benzimidazole moieties is an active catalyst for the asymmetric epoxidation of various olefins with excellent conversions (up to 99 %) and up to 96 % ee with hydrogen peroxide as the oxidant in the presence of 2-ethylhexanoic acid or acetic acid.

    11. Nanostructures

      Polyrotaxaned versus Interdigitated Super-Arrays of Loop-and-Chain Strands: Role of the Anion in Formation of Silver(0) Particles

      Jaeseong Jang, Tae Hwan Noh, Jin Kyoon Park, Yoon-Bo Shim and Ok-Sang Jung

      Article first published online: 6 OCT 2014 | DOI: 10.1002/ejic.201402730

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      The direct role of polyatomic anions in the formation of molecular super-arrays of 1D loop-and-chain strands and of silver(0) particles through both calcination and reduction are investigated.

    12. Actinides

      Complexation of NpV Ions with 1,10-Phenanthroline-2,9-dicarboxylic Acid: Spectrophotometric and Microcalorimetric Studies

      Yanqiu Yang, Zhicheng Zhang, Shunzhong Luo and Linfeng Rao

      Article first published online: 6 OCT 2014 | DOI: 10.1002/ejic.201402520

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      The large conjugated phenanthroline moiety in 1,10-phenanthroline-2,9-dicarboxylic acid provides a planar configuration in which the four donor atoms are “preorganized” into optimal positions to coordinate to the equatorial plane of NpO2+ ions to form a very strong tetradentate complex.

    13. Nanocomposite Films

      Preparation of Alginate/Graphene Oxide Hybrid Films and Their Integration in Triboelectric Generators

      Luca Valentini, Nicoletta Rescignano, Debora Puglia, Marta Cardinali and Josè Kenny

      Article first published online: 6 OCT 2014 | DOI: 10.1002/ejic.201402610

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      Sodium alginate/graphene oxide nanocomposite films were prepared by a solvent-casting method. We report the proof of concept that such a hybrid system can be used as the active component of a triboelectric generator. The involvement of a biodegradable polymer might introduce new applications in biodegradable/biocompatible electronics.

    14. Cluster Compounds

      You have full text access to this OnlineOpen article
      Ion-Size-Dependent Formation of Mixed Titanium/Lanthanide Oxo Clusters

      Christine Artner, Stefan Kronister, Matthias Czakler and Ulrich Schubert

      Article first published online: 6 OCT 2014 | DOI: 10.1002/ejic.201402670

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      Ln/Ti mixed-metal oxo clusters with an Ln/Ti ratio of 2:4, 2:6 and 1:4 have been obtained from the reactions of titanium isopropoxide with lanthanide acetates and methacrylic acid. The type of cluster obtained strongly depends on the size of the lanthanide ion.

    15. Supramolecular Complexes

      Supramolecular Coordination Complexes of the N-Thiophosphorylated 2,5-Dithiobiurea [NHC(S)NHP(S)(OiPr)2]2 with ZnII and CdII Ions – Cation-Induced Dinuclear Mesocate Structure versus Tetranuclear Nanoscaled Aggregate

      Damir A. Safin, Maria G. Babashkina, Piotr Kubisiak, Mariusz P. Mitoraj, Cécile S. Le Duff, Koen Robeyns and Yann Garcia

      Article first published online: 6 OCT 2014 | DOI: 10.1002/ejic.201402544

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      The reaction of the deprotonated N-thiophosphorylated bisthiourea [NHC(S)NHP(S)(OiPr)2]2 with ZnCl2 leads to the complex [Zn2{[NHC(S)NP(S)(OiPr)2]2}2], and the same reaction with CdCl2 leads to the formation of the tetranuclear nanoscaled aggregate [(Cd2{[NC(S)NHP(S)(OiPr)2]2}2)2].

  7. Short Communications

    1. Deamination

      Deamination of N[RIGHTWARDS ARROW]Sn-Coordinated Organotin(II) Hydroxide: Formation of a New C–O Covalent Bond

      Libor Dostál, Aleš Růžička and Roman Jambor

      Article first published online: 2 OCT 2014 | DOI: 10.1002/ejic.201402836

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      An acid–base-type reaction of N[RIGHTWARDS ARROW]Sn intramolecularly coordinated organotin(II)pentacarbonylchromium hydroxide [{2,6-(Me2NCH2)2C6H3}Sn(μ-OH)Cr(CO)5]2 with trifluoromethanesulfonic acid (HOTf) provided unprecedented cyclization product [{6-(Me2NCH2)-2,3-(C6H3CH2OSn)}Cr(CO)5]2. The cyclization process is accompanied by the formation of a new C–O covalent bond along with the elimination of Me2NH.

  8. Full Papers

    1. Gold Catalysis

      Protection of the Gold(I) Catalyst by AsPh3 in Reactions of Enynes

      Zoraida Ramiro, Camino Bartolomé and Pablo Espinet

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402744

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      The decomposition of cationic gold catalysts [AuL]Y, generated in situ from [AuClL] and AgY, can be prevented with AsPh3, either as a substoichiometric additive or in the form of the isolable [AuL(AsPh3)]Y. The reaction rates become slower, but fairly fast conversions are still achieved in most cases. The catalyst loading can also be considerably reduced.

    2. Photochemistry

      Interplay of Photoabsorption, Electronic Structure, and Recombination Rate of Charge Carriers on Visible Light Driven Photocatalytic Activity of Cu- and N-Doped Ba3V2O8

      Naveen Kumar Veldurthi, Priyanka Bandipalli, Gundeboina Ravi, Jitta Raju Reddy, Suresh Palla, Kotamarthi Bhanuprakash and Muga Vithal

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402577

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      Doping of copper and nitrogen into Ba3V2O8 modifies its electronic and optical properties to enhance visible light photodegradation of organic contaminants. Spectroscopic studies suggest that a lower rate of recombination of charge carriers is responsible for their superior photoactivity.

    3. Metal–Metal Bonding

      Non-Nuclear Attractor in a Molecular Compound under External Pressure

      Lai-Chin Wu, Cameron Jones, Andreas Stasch, James A. Platts and Jacob Overgaard

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402606

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      The existence of a non-nuclear maximum in the electron density of a Mg–Mg-containing molecular compound at elevated pressures has been verified from theoretical calculations. The calculations include experimental Mg–Mg distances obtained from high-pressure single-crystal X-ray diffraction data.

    4. Layered Compounds

      Nanostructuring of Bridged Organosilane Precursors with Pendant Alkyl Chains

      Sílvia C. Nunes, Kristýna Bürglová, Jana Hodačová, Rute A. S. Ferreira, Luís D. Carlos, Paulo Almeida, Xavier Cattoën, Michel Wong Chi Man and Verónica de Zea Bermudez

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402673

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      A new bridged silsesquioxane with hierarchically structured lamellar bilayer structure and a texture composed of microplates of nanometer thickness was obtained by sol-gel and self-assembly by using a bridged organosilane carrying a pendant icosanyl chain produced by click chemistry. The hybrid exhibits a time-independent reversible order/disorder phase transition in a heating-cooling cycle.

    5. Cobalt Chemistry

      Endogenous and Exogenous Ligand-Dependent Formation of a Superoxide-Bridged Dicobalt(III) Complex and Mononuclear CoIII Complexes with Amide-Based Macrocyclic Ligands

      Sushil Kumar and Rajeev Gupta

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402743

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      The amide-based macrocyclic ligands show interesting cobalt chemistry by forming superoxide-bridged dicobalt(III) complex 1 and distinct mononuclear CoIII complexes 25. The steric factors originating from the endogenous and exogenous ligands are believed to control the formation of distinct complexes.

    6. Liquid Crystals

      Combined Stabilizing Effects of Trifluoromethyl Groups and Semifluorinated Side Chains on the Thermotropic Liquid-Crystal Behavior of β-Enamino Ketone Ligands and Their Bischelate PdII Complexes

      Alexander Martin, Carolin Mügge, Douglas L. Gin, Bertrand Donnio and Wolfgang Weigand

      Article first published online: 1 OCT 2014 | DOI: 10.1002/ejic.201402489

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      The first liquid-crystalline β-enamino ketonato PdII complexes with semifluorinated tails are described. In contrast to their n-alkoxy parent compounds, they exhibit a smectic A (SmA) phase. This is a clear indication of a fluorophobic effect in the metal-containing liquid crystals. Different substitution patterns at the chelate unit show the limitation of microphase segregation in these materials.

    7. Platinum Complexes

      Electron-Transfer Studies of trans-Platinum Bis(acetylide) Complexes

      Dominique Miesel, Alexander Hildebrandt, Tobias Rüffer, Dieter Schaarschmidt and Heinrich Lang

      Article first published online: 30 SEP 2014 | DOI: 10.1002/ejic.201402686

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      The synthesis of trans-[Pt(C≡CFc)2(PFcmnBu3–m)2] (m = 0, 1, 2; Fc = ferrocenyl) is presented. Spectroelectrochemical investigations indicate electronic communication between the iron centers of the FcC≡C units; therefore, these compounds are classified as weakly coupled class II systems, according to Robin and Day.

    8. Nanostructures

      Low-Temperature Synthesis of Highly Crystallized Hexagonal Boron Nitride Sheets with Li3N as Additive Agent

      Sheng Yuan, Bérangère Toury, Stéphane Benayoun, Rodica Chiriac, François Gombault, Catherine Journet and Arnaud Brioude

      Article first published online: 30 SEP 2014 | DOI: 10.1002/ejic.201402507

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      A versatile method based on polymer-derived ceramics was used to prepare highly crystallized hexagonal BN sheets. Li3N was used as a crystallization promoter to reach highly crystallized states at a lower temperature than is required for processes without an additive agent.

    9. Nanoparticles

      Encapsulation of Bimetallic Nanoparticles into a Metal–Organic Framework: Preparation and Microstructure Characterization of Pd/Au@ZIF-8

      Christoph Rösler, Daniel Esken, Christian Wiktor, Hirokazu Kobayashi, Tomokazu Yamamoto, Syo Matsumura, Hiroshi Kitagawa and Roland A. Fischer

      Article first published online: 30 SEP 2014 | DOI: 10.1002/ejic.201402409

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      The imidazolate-based framework ZIF-8 was loaded with catalytically active mono- and bimetallic nanoparticles (Au, Pd, Pd/Au) by a seed-and-growth concept. Characterization of the synthesized materials was carried out by powder X-ray diffraction, N2 sorption, and advanced transmission electron microscopy. The catalytic activity towards aerobic alcohol oxidations was studied.

    10. Polyoxometalates

      Solution Speciation of the Dinuclear ZrIV-Substituted Keggin Polyoxometalate [{α-PW11O39Zr(μ-OH)(H2O)}2]8– and Its Reactivity towards DNA-Model Phosphodiester Hydrolysis

      Thi Kim Nga Luong, Gregory Absillis, Pavletta Shestakova and Tatjana N. Parac-Vogt

      Article first published online: 29 SEP 2014 | DOI: 10.1002/ejic.201402735

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      A detailed 31P NMR spectroscopic aqueous solution study on the ZrIV-substituted Keggin-type polyoxometalate (Et2NH2)8[{α-PW11O39Zr(μ-OH)(H2O)}2]·7H2O (ZrK 2:2) describes the influence of pD, temperature, reaction time, ionic strength, and ZrK 2:2 or substrate concentration, which allowed for a full characterization of the speciation equilibria.

  9. Microreviews

    1. Supramolecular Chemistry

      Constitutional Hybrid Materials – Toward Selection of Functions

      Mihail Barboiu

      Article first published online: 29 SEP 2014 | DOI: 10.1002/ejic.201402500

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      This review will focus on the implementation of constitutional dynamic chemistry (CDC) toward constitutional hybrid materials, emphasizing recent developments in biomimetic ion channels, membranes, and constitutional hybrid materials.

  10. Full Papers

    1. Conformation Studies

      Conformational Changes and Phase Behaviour in the Protic Ionic Liquid 1-Ethylimidazolium Bis(trifluoromethylsulfonyl)imide in the Bulk and Nano-Confined State

      Anna Martinelli

      Article first published online: 29 SEP 2014 | DOI: 10.1002/ejic.201402496

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      Conformational changes of the TFSI anion in the protic ionic liquid C2HImTFSI have been monitored by temperature-dependent Raman spectroscopy for the bulk and nano-confined states. Phase behaviours have also been spectroscopically investigated at a range of temperatures. In the nano-confined state the cis form predominates and the enthalpic term was higher.

    2. Nanomolar Ag Detection

      Nanomolar Detection of AgI Ions in Aqueous Medium by Using Naphthalimide-Based Imine-Linked Fluorescent Organic Nanoparticles – Application in Environmental Samples

      Hemant Sharma, Vimal K. Bhardwaj and Narinder Singh

      Article first published online: 29 SEP 2014 | DOI: 10.1002/ejic.201402473

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      A naphthalimide-based dipodal chemosensor for the ratiometric detection of AgI ions in aqueous media has been synthesized, which has a detection limit in the nanomolar range. The chemosensor was successfully utilized for the detection of AgI in environmental samples.

    3. Nickel Complexes

      Synthesis, Characterization, and Interconversion of β-Diketiminato Nickel NxHy Complexes

      Claudia Köthe, Beatrice Braun, Christian Herwig and Christian Limberg

      Article first published online: 26 SEP 2014 | DOI: 10.1002/ejic.201402812

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      In the coordination sphere of β-diketiminato nickel(II) moieties hydrazine can be reversibly deprotonated, once to yield a hydrazido(–1) complex (which decomposes to an ammine complex at elevated temperatures) and twice to give a Ni(N2H2) complex with an electronic structure intermediate between nickel(II) hydrazido(–2) and nickel(0) diazene.

    4. Cyclization

      Cyclizations of Aryl Enynes Containing Propargyl Alcohol and Diallylamine Groups to Yield Indolecarbaldehydes Induced by Ruthenium Complexes

      Yi-Jhen Feng, Fu-Yuan Tsai, Shou-Ling Huang, Yi-Hong Liu and Ying-Chih Lin

      Article first published online: 26 SEP 2014 | DOI: 10.1002/ejic.201402678

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      The cyclization of aryl enynes 1a1c containing propargyl alcohol and ortho-substituted amine groups on the aryl ring with a ruthenium complex first generates the carbene complexes 2a2c; the oxygenation/demetallation of 2a2c is promoted by visible light and causes the cleavage of the Ru=C bond to afford aldehyde products 4a4c, respectively.

    5. Prussian Blue Sensor

      Prussian Blue Films Produced by Pentacyanidoferrate(II) and Their Application as Active Electrochemical Layers

      Bruno Morandi Pires, Sergio Augusto Venturinelli Jannuzzi, André Luiz Barboza Formiga and Juliano Alves Bonacin

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402760

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      Prussian Blue is widely used in electrochemical sensors due to its ability to catalyze H2O2 reduction. Glucose meters are common point-of-care devices that employ ferricyanide as a redox mediator. The sensitivity, selectivity, and specificity of these devices can be improved by using Prussian Blue produced by pentacyanidoferrate(II) as an electroactive species rather than a redox mediator.

    6. Polycycles

      Syntheses and Properties of Multiferrocenylated Corannulenes

      Berit Topolinski, Bernd M. Schmidt, Sergej Schwagerus, Michael Kathan and Dieter Lentz

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402667

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      The synthesis and properties of corannulenes bearing up to five ferrocenyl groups are described. All compounds were investigated electrochemically to elucidate the interactions in the multiferrocenylated corannulenes. Additionally, several molecular structures were confirmed by single-crystal X-ray analyses and are discussed with respect to those of previously studied corannulenes.

    7. Coordination Polymers

      Two 3D Coordination Frameworks Based on Benzobisimidazole Linkers Generated under Similar Conditions: Synthesis, Structures and Thermal Properties

      Shyam Biswas, Ying-Ya Liu, Markus Tonigold, Matthias Weil and Dirk Volkmer

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402552

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      The syntheses, crystal structures, and thermal and spectroscopic properties of two benzobisimidazole-based CoII and ZnII coordination polymers are presented.

    8. Chemodosimetric Detection

      Chemodosimetric Detection of the Acetate Anion by Using the Template Reaction Method via a Fluorescence “Turn-Off” Signal

      Sudhanshu Das, Sankar Jana, Prateeti Chakraborty, Ria Sanyal, Dilip Kumar Maiti, Nikhil Guchhait, Ennio Zangrando and Debasis Das

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402529

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      A highly efficient copper-based metallo–ligand chemodosimeter has been developed for selective sensing of the acetate anion in the presence and/or absence of other anions via a fluorescence “turn-off” signal arising from the transformation from the dinuclear to the tetranuclear species.

    9. Field Emission

      Metallic Few-Layer Flowerlike VS2 Nanosheets as Field Emitters

      Chandra Sekhar Rout, Ruchita Khare, Ranjit V. Kashid, Dilip S. Joag, Mahendra A. More, Nicholas A. Lanzillo, Morris Washington, Saroj K. Nayak and Dattatray J. Late

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402448

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      We report first-principles DFT calculations of the single-layer VS2 work function, the experimental synthesis of flower-like few-layer-thick VS2 nanosheets by a simple hydrothermal method, and its field emission properties.

    10. Layered Hydroxides

      Acid Treatment of Layered Double Hydroxides Containing Carbonate

      Toshiyuki Hibino

      Article first published online: 24 SEP 2014 | DOI: 10.1002/ejic.201402372

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      Changes in Mg–Al–CO3 layered double hydroxides (LDHs) upon treatment with acidic solutions that contain Cl anions were investigated. The extent of anion exchange of interlayer anions for Cl, the Mg/Al atomic ratio, and the weight recovery after treatment were monitored. The composition of the acidic solutions, LDH crystallinity, and the washing procedures all affected the product properties.

    11. Uranyl Phosphinates

      The First Family of Actinide Carboxy­phosphinates: Two- and Three-Dimensional Uranyl Coordination Polymers

      Weiting Yang, Hao Wang, Wan-Guo Tian, Jiyang Li and Zhong-Ming Sun

      Article first published online: 22 SEP 2014 | DOI: 10.1002/ejic.201402592

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      The first family of actinide carboxyphosphinates has been synthesized using (2-carboxyethyl)(phenyl)phosphinic acid as the ligand including two layered assemblies and two framework structures pillared by imidazole derivatives. Well-defined charge-transfer vibronic transitions of green light emission and effective degradation of RhB under visible light are illustrated.

    12. Ionic Liquids

      Organic–Inorganic Hybrid Membranes Based on Sulfonated Poly(ether ether ketone) and Tetrabutylphosphonium Bromide Ionic Liquid for PEM Fuel Cell Applications

      Vijay Shankar Rangasamy, Savitha Thayumanasundaram, Niels de Greef, Jin Won Seo and Jean-Pierre Locquet

      Article first published online: 19 SEP 2014 | DOI: 10.1002/ejic.201402558

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      Polymer–ionic liquid electrolyte membranes were fabricated from tetrabutylphosphonium bromide ([P4 4 4 4]Br) and sulfonated poly(ether ether ketone) (SPEEK). Their thermal, mechanical, structural and electrical properties show promise for their use in high-temperature fuel cell applications.

    13. Zn Coordination Chemistry

      The Effect of ZnII Coordination on the Addition of 2-(Aminomethyl)benzimidazole to Acrylonitrile

      Martha P. Falcón-León, Antonio R. Tapia-Benavides, Hugo Tlahuext, Carlos Galán-Vidal, Oscar R. Suarez-Castillo and Margarita Tlahuextl

      Article first published online: 19 SEP 2014 | DOI: 10.1002/ejic.201402346

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      The aza additions of 2-(aminomethyl)benzimidazole (HL) to acrylonitrile depend on pH and are not selective. However, the N[RIGHTWARDS ARROW]Zn coordination bonds in HL increase the selectivity of the aza addition to acrylonitrile because the ZnII protects the imidazolic nitrogen atoms. Moreover, the aza addition of ZnII complexes requires an aqueous medium.

    14. Metalloporphyrins

      Exploring the Effects of Axial Pseudohalide Ligands on the Photophysical and Cyclic Voltammetry Properties and Molecular Structures of MgII Tetraphenyl/porphyrin Complexes

      Khaireddine Ezzayani, Zouhour Denden, Shabir Najmudin, Cecilia Bonifácio, Eric Saint-Aman, Frédérique Loiseau and Habib Nasri

      Article first published online: 18 SEP 2014 | DOI: 10.1002/ejic.201402546

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      The [Mg(TPP)X] (TPP = tetraphenylporphyrinato; X = N3, NOC, NCS) complex ions were characterized by X-ray diffraction. The effects of the nature of the axial pseudohalide ligand X on the photophysical and redox properties of these species in dichloromethane have also been studied by cyclic voltammetry, UV/Vis spectroscopy, and fluorescence spectroscopy techniques.

    15. Lone-Pair–π Interactions

      2-Pyridylcyanoxime–NiII Clusters with Unusual Topologies: Lone-Pair–π Interactions and Magnetic Properties

      Albert Escuer, Jordi Esteban, Júlia Mayans and Mercè Font-Bardia

      Article first published online: 18 SEP 2014 | DOI: 10.1002/ejic.201402598

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      Magnetic properties and supramolecular lone-pair–π-ring interactions have been analyzed for a series of new tri- and pentanuclear nickel derivatives of the 2-pyridylcyanoximate ligand.

    16. Chiral Copper Cluster

      A Pair of Enantiopure Cubane-Type CuII4O4 Clusters: Synthesis, Structure, Chirality and Magnetism

      Ji Yin, Ting-Ting Yin, Chen Gao, Bing-Wu Wang, Yuan-Yuan Zhu, Zong-Quan Wu and Song Gao

      Article first published online: 18 SEP 2014 | DOI: 10.1002/ejic.201402608

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      A pair of enantiopure cubane-type CuII4O4 clusters was obtained from a chiral Schiff base ligand. The chirality and weak antiferromagnetic interactions within the CuII4L4 core were studied.

    17. Metal–Organic Frameworks

      Designing Near-Infrared and Visible Light Emitters by Postsynthetic Modification of Ln+3–IRMOF-3

      Reda M. Abdelhameed, Luis D. Carlos, P. Rabu, Sérgio M. Santos, Artur M. S. Silva and João Rocha

      Article first published online: 17 SEP 2014 | DOI: 10.1002/ejic.201402789

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      The postsynthetic modification of IRMOF-3 with ethyl oxalyl monochloride and ethyl acetoacetate followed by the chelation of trivalent lanthanide ions is a suitable route for the preparation of efficient near-infrared (Nd3+) and visible (Eu3+ and Tb3+) light emitters.

    18. Metallacycles

      Reactivity of a Seven-Membered Zirconacyclocumulene towards CN Multiple Bonds – Formation of Metallaheterocycles by Insertion of C≡N and C=N Groups

      Vladimir V. Burlakov, Lisanne Becker, Vyacheslav S. Bogdanov, Maxim V. Andreev, Perdita Arndt, Anke Spannenberg, Wolfgang Baumann and Uwe Rosenthal

      Article first published online: 17 SEP 2014 | DOI: 10.1002/ejic.201402618

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      Reactions of RC≡N (R = Me, Ph) and PhCH=NPh with the seven-membered zirconacyclocumulene [Cp2Zr{η4-Me3SiC4(SiMe3)–C(C2SiMe3)=CSiMe3}] (1) give five-membered cycles by insertion of CN bonds. For the nitrile with R = Me, stabilization by dimerization occurs to yield 2, whereas for R = Ph with a second nitrile, pyrimidines are formed. Compound 4 reversibly inserts CO2.

    19. Mesoporous Materials

      Synthesis of Co/Ni Unitary- or Binary-Doped CeO2 Mesoporous Nanospheres and Their Catalytic Performance for CO Oxidation

      Xiufang Liu, Lu Han, Wei Liu and Yanzhao Yang

      Article first published online: 17 SEP 2014 | DOI: 10.1002/ejic.201402570

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      Ceria, pure ceria doped with transition metal ions (Co2+, Ni2+), and Co/Ni binary-doped ceria mesoporous notched hollow nanospheres were prepared from a one-step solvothermal synthesis. The incorporation of metal ions into the ceria fluorite lattice results in higher catalytic activity. In addition, the mesoporous nanospheres can be used as an excellent support for noble metals.

    20. Peptide Conjugates

      Synthesis, Characterization of Some Ferrocenoyl Cysteine and Histidine Conjugates, and Their Interactions with Some Metal Ions

      Guo-Cheng Han, Annaleizle Ferranco, Xiao-Zhen Feng, Zhencheng Chen and Heinz-Bernhard Kraatz

      Article first published online: 17 SEP 2014 | DOI: 10.1002/ejic.201402470

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      A series of disubstituted ferrocenoyl cysteine and histidine derivatives as well as iron–sulfur cluster analogs were synthesized. According to circular dichroism (CD) spectra, all ferrocenoyl compounds have P-helical conformation. Conversely, after the addition of ZnII, the configuration for ferrocene (Fc) amino acid conjugates 6a and 6b changed from P-helical to M-helical in the 480 nm region.

    21. Phosphorescent Emitters

      Ruthenium(II) Photosensitizers with Electron-Rich Diarylamino-Functionalized 2,2′-Bipyridines and Their Application in Dye-Sensitized Solar Cells

      Qiwei Wang, Wenjun Wu, Cheuk-Lam Ho, Liqin Xue, Zhenyang Lin, Hua Li, Yih Hsing Lo and Wai-Yeung Wong

      Article first published online: 17 SEP 2014 | DOI: 10.1002/ejic.201402396

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      New ruthenium(II)-based photosensitizers with electron-rich diarylamino-2,2′-bipyridine ligands have been developed. They can be used to afford decent and reasonably stable device performance in dye-sensitized solar cells (up to 5.95 % in cosensitized cells versus 6.76 % for N719), thereby revealing the great potential of these dyes.

    22. Metallacycles

      Investigating the Formation Mechanism of Arene Ruthenium Metallacycles by NMR Spectroscopy

      Amine Garci, Gajendra Gupta, Claudio Dalvit and Bruno Therrien

      Article first published online: 12 SEP 2014 | DOI: 10.1002/ejic.201402639

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      The stereochemical properties of twelve dinuclear arene ruthenium complexes have been studied in solution by NMR spectroscopy. All complexes showed lability of the pyridyl-based ligands in solution and rapid exchange between the cis and trans isomers. The intermediate species have been identified and, thus, provided insights into the formation mechanism of arene ruthenium metalla-assemblies.

    23. Polymorphs

      Prospective Electroluminescent Hybrid Materials

      Olga B. Petrova, Roman I. Avetisov, Andew V. Khomyakov, Rasim R. Saifutyarov, Alina A. Akkuzina, Elena N. Mozhevitina, Alexandr V. Zhukov and Igor Ch. Avetissov

      Article first published online: 12 SEP 2014 | DOI: 10.1002/ejic.201402538

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      Three polymorphs of tris(8-hydroxyquinoline)boron (Bq3) were obtained by high-temperature substitution reaction. Their spectral and structural properties were investigated and showed Bq3 to be a potential blue emitter. Hybrid material (HM) films B2O3/Alq3/B2O3 on a glass substrate were made by vacuum sputtering. Laser heating of the HM film resulted in an irreversible change in its photoluminescence.

    24. Surface Functionalization

      Spatially Confined Functionalization of Transparent NiO Thin Films with a Luminescent (1,10-Phenanthroline)tris(2-thenoyltrifluoroacetonato)europium Monolayer

      Emanuele Smecca, Cristina Tudisco, Antonino E. Giuffrida, Maria R. Catalano, Adolfo Speghini, Graziella Malandrino and Guglielmo G. Condorelli

      Article first published online: 12 SEP 2014 | DOI: 10.1002/ejic.201402479

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      Anchoring of the Eu(TTA)3phen complex on MOCVD-grown NiO films is reported. The NiO surface was activated by means of a sputtering process and functionalized with a phosphonic linker, followed by the coordination of the Eu complex through a ligand-exchange reaction. The luminescent hybrid system has been proven to retain the optical properties of the Eu complex.

    25. Self-Healing Materials

      Furan-Modified Spherosilicates as Building Blocks for Self-Healing Materials

      Tom Engel and Guido Kickelbick

      Article first published online: 9 SEP 2014 | DOI: 10.1002/ejic.201402551

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      Octameric furfuryl-functionalized spherosilicates were used to prepare self-healing hybrid materials based on a reversible Diels–Alder reaction. Two different bismaleimides were used as dienophilic cross-linkers for the self-healing materials. The healing abilities are dictated by the nature of the cross-linker.

    26. Coordination Polymers

      Coordination Polymers Based on Alkylboronate Ligands: Synthesis, Characterization, and Computational Modelling

      Dorothée Berthomieu, Christel Gervais, Guillaume Renaudin, Marc Reinholdt, Saad Sene, Mark E. Smith, Christian Bonhomme and Danielle Laurencin

      Article first published online: 9 SEP 2014 | DOI: 10.1002/ejic.201402561

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      The synthesis and characterization of three new crystalline alkylboronate structures are described, together with their DFT modelling and calculations of solid-state NMR parameters and IR O–H stretching frequencies.

    27. Luminescence

      Modelling the Luminescence of Phosphonate Lanthanide–Organic Frameworks

      Mariela M. Nolasco, Ricardo F. Mendes, Patrícia P. Lima, Filipe A. Almeida Paz, Luís D. Carlos and João Rocha

      Article first published online: 4 SEP 2014 | DOI: 10.1002/ejic.201402492

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      The applicability of the LUMPAC software for calculations of the photoluminescence properties of metal–organic frameworks is assessed by considering three systems with a ditopic 1,4-phenylenebis(methylene)diphosphonic acid ligand and Eu3+ ions. A simple method based on the crystallographic structural subunits affords excellent agreement between the calculated and experimental photoluminescence.

    28. Gas Adsorbing Materials

      Efficient Hybrid-Type CO2 Adsorbents of Reassembled Layered Double Hydroxide 2D Nanosheets with Polyoxometalate 0D Nanoclusters

      Jayavant L. Gunjakar, In Young Kim and Seong-Ju Hwang

      Article first published online: 4 SEP 2014 | DOI: 10.1002/ejic.201402480

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      Porous nanohybrids of Mg-Al-layered double hydroxide (LDH) 2D nanosheets and polyoxometalate 0D nanoclusters are synthesized by an exfoliation–reassembling process. The resulting nanohybrid materials show promising CO2 adsorption capabilities exceeding those of pristine Mg-Al-LDH, underscoring the usefulness of the present hybridization method in optimizing gas adsorption by LDH materials.

    29. Biosensing

      Properties of an Indium Tin Oxide Electrode Modified by a Laser Nanostructured Thin Au Film for Biosensing

      Katarzyna Grochowska, Katarzyna Siuzdak and Gerard Śliwiński

      Article first published online: 21 AUG 2014 | DOI: 10.1002/ejic.201402485

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      Thin Au films on ITO that were stepwise patterned by means of nanosecond UV laser pulses transformed into semi-regular nanoparticle arrays. The modified electrode showed enhanced activity towards ferricyanide redox systems as well as glucose, and can be considered for the production of a non-enzymatic biosensor.

  11. Microreviews

    1. Metallo Amino Acids

      Redox and Photochemistry of Bis(terpyridine)ruthenium(II) Amino Acids and Their Amide Conjugates – from Understanding to Applications

      Aaron Breivogel, Christoph Kreitner and Katja Heinze

      Article first published online: 15 AUG 2014 | DOI: 10.1002/ejic.201402466

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      Ruthenium(II) amino acid [Ru(4′-tpy-COOH)(4′-tpy-NH2)]2+ interacts with photons, electrons, and/or protons, to lead to phosphorescence, oxidative and reductive chemistry, acid/base chemistry, proton-coupled electron transfer, photoinduced reductive and oxidative electron transfer, excited-state proton transfer, and energy transfer. Applications include light-emitting electrochemical and dye-sensitized solar cells.

  12. Full Papers

    1. Composite Structures

      Optical and Electrooptical Properties of Porous-Silicon/Conjugated-Polymer Composite Structures

      Amit Nahor, Itai Shalev, Amir Sa'ar and Shlomo Yitzchaik

      Article first published online: 15 AUG 2014 | DOI: 10.1002/ejic.201402450

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      An organic–inorganic hybrid structure consisting of porous silicon and nanowires of poly(N-vinylcarbazole) (PVK) exhibits optical behavior of the PVK nanowires, which is unique when compared with the bulk material. Furthermore, a simple method to control the band alignment between type-I and type-II is demonstrated. Our results enable a variety of applications and electrooptical characteristics.

    2. Silver Clusters

      Synthesis of Atomically Precise Silver Clusters by Using the Miscibility Principle

      Atanu Ghosh and Thalappil Pradeep

      Article first published online: 28 JUL 2014 | DOI: 10.1002/ejic.201402587

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      Silver and gold clusters have been synthesized by using the miscibility principle of solvents. Three solvents, that is, water, methanol, and toluene (or chloroform) have been used to synthesize different silver clusters by this method without phase-transfer agents. Separate regions of the phase diagram (a, b, c, and d) produce distinctly different clusters from the same reactant compositions.

    3. Selective Crystallization

      Sulfonated Polymethylsiloxane as an Additive for Selective Calcium Oxalate Crystallization

      Andrónico Neira-Carrillo, Fabian Luengo-Ponce, Patricio Vásquez-Quitral, Mehrdad Yazdani-Pedram, María Soledad Fernández, Helmut Cölfen and José Luis Arias

      Article first published online: 27 JUN 2014 | DOI: 10.1002/ejic.201402063

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      Sulfonated and fluorescent polymethylsiloxanes (SO3H-PMS) were synthesized and used as additives for in vitro calcium oxalate (CaOx) crystallization. The strong modifying capacity of SO3HPMS on CaOx morphologies and CaOx monohydrate (COM) and CaOx dihydrate (COD) crystal types was demonstrated. Fluorescent CaOx crystals were also produced by the inclusion of SO3H-PMS into the CaOx matrix.

    4. Nickel Nanoparticles

      A Neutral 1D Coordination Polymer Constructed from the NiII Complex of the N-Phosphorylated Thiourea PhNHC(S)­NHP­(O)(OPh)2 and Pyrazine: A Single-Source Precursor for Nickel Nanoparticles

      Maria G. Babashkina, Damir A. Safin, Koen Robeyns and Yann Garcia

      Article first published online: 3 JUN 2014 | DOI: 10.1002/ejic.201402278

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      Interaction of [Ni{PhNHC(S)NP(O)(OPh)2}2] with pyrazine (pz) yielded the 1:1 coordination polymer [NiL2pz]n, in which the coordination mode of L changed unexpectedly from 1,3-N,S- to 1,5-O,S-[NiL2pz]n dissolved in tri-n-octylphosphine (TOP) is decomposed in hot hexadecylamine to give TOP-capped face-centered cubic Ni nanoparticles with an average particle size of 17(2) nm.


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