European Journal of Inorganic Chemistry

Cover image for Vol. 2014 Issue 36

December 2014

Volume 2014, Issue 36

Pages 6136–6297

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
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    6. Masthead
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      S = 2 Spin Ladders in the Sulfide Oxide BaFe2S2O (Eur. J. Inorg. Chem. 36/2014)

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

      Article first published online: 18 DEC 2014 | DOI: 10.1002/ejic.201490172

      Thumbnail image of graphical abstract

      The cover picture shows globular grains within the particles of BaFe2S2O and their pleochroitic behavior, as seen with polarized light. Superimposed on this background is a part of the BaFe2S2O crystal structure, where the corner- and edge-sharing FeS3O tetrahedra are drawn as polyhedra. The spin ladders are emphasized solemnly by extending the magnetic Fe lattice. The interladder couplings are marked with dashed lines. Details are discussed in the article by M. Valldor et al. on p. 6150 ff. For more on the story behind the cover research, see the Cover Profile.

  2. Cover Profile

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    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
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    1. You have free access to this content
      S = 2 Spin Ladders in the Sulfide Oxide BaFe2S2O (pages 6136–56136)

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

      Article first published online: 18 DEC 2014 | DOI: 10.1002/ejic.201403101

      Thumbnail image of graphical abstract

      These low-symmetry sites for magnetically active or highly oxidized cations could result in magnetoelectric coupling or strong nonlinear optical activity, respectively, both of which are interesting for fundamental and applied science...

      Read more about the story behind the cover in the Cover Profile and about the research itself on p. 6150 ff.

  3. Graphical Abstract

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    1. Graphical Abstract: Eur. J. Inorg. Chem. 36/2014 (pages 6137–6143)

      Article first published online: 18 DEC 2014 | DOI: 10.1002/ejic.201490173

  4. News

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    3. Cover Profile
    4. Graphical Abstract
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  5. Masthead

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    1. Masthead: Eur. J. Inorg. Chem. 36/2014 (pages 6148–6149)

      Article first published online: 18 DEC 2014 | DOI: 10.1002/ejic.201490175

  6. Full Papers

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Graphical Abstract
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    1. Spin Ladders

      S = 2 Spin Ladders in the Sulfide Oxide BaFe2S2O (pages 6150–6155)

      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. Nanocomposites for Drug Delivery

      Synthesis of Multifunctional Fe3O4@mSiO2@Au Core–Shell Nanocomposites for pH-Responsive Drug Delivery (pages 6156–6164)

      Liru Cui, Huiming Lin, Chunyu Yang, Xiao Han, Ting Zhang and Fengyu Qu

      Article first published online: 21 NOV 2014 | DOI: 10.1002/ejic.201402671

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      A pH-responsive and magnetic-targeted drug-delivery system was prepared with a Fe3O4@mesoporous silica core–shell nanostructure as host. Au nanoparticles were used as the capping agent. These were connected to the surface of the mesopore through the hydrazone linkage to restrict the drug release. The system has potential applications in low-pH tissue-targeted therapy.

    3. Macrocyclic Ligands

      Highly Stable Complexes of Divalent Metal Ions (Mg2+, Ca2+, Cu2+, Zn2+, Cd2+, and Pb2+) with a Dota-Like Ligand Containing a Picolinate Pendant (pages 6165–6173)

      Martín Regueiro-Figueroa, Erika Ruscsák, Laura Fra, Gyula Tircsó, Imre Tóth, Andrés de Blas, Teresa Rodríguez-Blas, Carlos Platas-Iglesias and David Esteban-Gómez

      Article first published online: 13 NOV 2014 | DOI: 10.1002/ejic.201402693

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      A detailed study of the thermodynamic stability of complexes formed by divalent metal ions with a macrocyclic ligand containing a picolinate arm is reported. The complexes of Cu2+, Zn2+, Cd2+, and Pb2+ present high stability constants [log KML > 20]. DFT calculations and NMR spectroscopy point to variable coordination numbers and geometries for this series of metal complexes.

    4. Nitric Acid Reduction

      Mechanism of Nitric Acid Reduction and Kinetic Modelling (pages 6174–6184)

      David Sicsic, Fanny Balbaud-Célérier and Bernard Tribollet

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402708

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      The kinetics of the reduction of 4 M nitric acid has been investigated at an inert electrode at 40 °C. The results show that the reduction process is autocatalytic for potentials between 0.6 and 1.15 V/NHE. HNO2 is the electroactive species and is regenerated at or near the electrode surface by a chemical reaction between HNO3 and NO(ads). Kinetic modelling of this mechanism was carried out.

    5. Tetranuclear Cu Complexes

      Quenching of Fluorescence in Bodipy-Derived Trifluoromethyl Enaminone Ligands upon Coordination to Copper(II) (pages 6185–6195)

      Nicolas Chopin, Maurice Médebielle, Olivier Maury, Ghénadie Novitchi and Guillaume Pilet

      Article first published online: 21 NOV 2014 | DOI: 10.1002/ejic.201402714

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      Syntheses of two derived enaminone ligands bearing a fluorescent 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (Bodipy) moiety lead to two mono- and tetranuclear CuII complexes with redox and magnetic properties, respectively. Whereas the luminescence properties of the ligands are typical of the Bodipy skeleton, the emission is quenched in the complexes.

    6. Carbon Dioxide Activation

      C–O Bond Activation by a Tantalum-Bonded Pincer Ligand – Ligand Modification Effects on the Selectivity of C–H Bond Cleavage Processes (pages 6196–6204)

      Rosa Fandos, Carolina Hernández, Antonio Otero, Ana Rodríguez and María José Ruiz

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402953

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      The cooperative metal–ligand activation of C–O bonds allows the functionalization of the pincer moiety to yield a variety of tantalum-bonded tetradentate ligands. We study the role of the ligand substituents on the selectivity of C–H bond cleavage processes.

    7. Coordination Polymers

      Four Cobalt(II)-Containing Coordination Polymers: Effects of pH Value and Temperature on Synthesis, Gas-Sorption, and Magnetic Properties (pages 6205–6211)

      Yuan-Chun He, Xiaoying Zhang, Ying-Ying Liu, Hai-Yan Liu and Jian-Fang Ma

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402737

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      Four 3D CoII-containing coordination polymers (CPs) based on a semirigid trigonal carboxylic acid have been synthesized under hydrothermal conditions. The CP that is formed is influenced by the pH value, reaction temperature, and auxiliary ligand. Variable-temperature magnetic susceptibilities of compounds 14 were also investigated.

    8. Ferrocene-Based Heterocycles

      Synthesis, Molecular Structure and Properties of a Ferrocene-Based Difluoropyrrolo-Oxaborole Derivative (pages 6212–6219)

      Andrew C. Benniston, Dumitru Sirbu, Constantin Turta, Michael R. Probert and William Clegg

      Article first published online: 2 DEC 2014 | DOI: 10.1002/ejic.201402752

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      Reaction of 1,1′-ferrocenedicarbonyl chloride with 3-ethyl-2,4-dimethylpyrrole produces the bis(ketopyrrole) compound. Chelation of BF2 to the ketopyrrole units forms the difluoropyrrolo-oxaborole.

    9. Coordination-Polymer Particles

      Structural and Morphological Transformations of In–MIL-68-Based Hexagonal Lumps to QMOF-2-Based Pointed Hexagonal Rods by Means of Destruction and Reconstruction Processes (pages 6220–6224)

      Sora Choi, Hee Jung Lee, Taeho Kim and Moonhyun Oh

      Article first published online: 21 NOV 2014 | DOI: 10.1002/ejic.201402905

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      Simple thermal treatment of In–MIL-68-based three-dimensional Kagomé-like structured hexagonal lumps in the presence of an excess amount of 1,4-benzenedicarboxylic acid (H2BDC) induces structural and morphological transformations into quartz-structured QMOF-2-based pointed hexagonal rods.

    10. Chirality in Coordination Polymers

      trans-1,2-Cyclohexanedisulfonic Acid: An Optically Active Linker for Coordination Polymers (pages 6225–6231)

      Florian Behler, Christina Zitzer, Mathias S. Wickleder and Jens Christoffers

      Article first published online: 26 NOV 2014 | DOI: 10.1002/ejic.201402925

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      Optically active trans-1,2-cyclohexanedisulfonic acid was prepared in four steps from cyclohexene oxide.

    11. Organic–Inorganic Hybrids

      Tuning the Morphology of GeS2 Hybrid Materials Using Ionic Liquids as Structuring Agents (pages 6232–6238)

      Romain Mathiaud, Laurence Courthéoux, Gilles Silly, Hashim Albadri, Jocelyne Levillain, Annie-Claude Gaumont, Michel Ribes and Annie Pradel

      Article first published online: 13 NOV 2014 | DOI: 10.1002/ejic.201402762

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      Hybrid organic–GeS2 particles, the morphology of which depended upon the cationic part of an ionic liquid that was added as structuring agent, were prepared by means of an innovative nonhydrolytic soft-chemistry route at room temperature at atmospheric pressure.

    12. Photocatalytic Degradation

      Fluorescence Detection of Anilines and Photocatalytic Degradation of Rhodamine B by a Multifunctional Metal–Organic Framework (pages 6239–6245)

      Fengqin Wang, Caifu Dong, Zechuan Wang, Yaru Cui, Chengmiao Wang, Yongnan Zhao and Guodong Li

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402770

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      A multifunctional metal–organic framework for determination of toxic aromatic amines has been constructed and it shows photocatalytic degradation of organic dyes due to the combination of luminescence and accessible porosity within the MOF.

    13. N-Heterocyclic Carbene Complexes

      Metal Complexes of Very Bulky N,N′-Diarylimidazolylidene N-Heterocyclic Carbene (NHC) Ligands with 2,4,6-Cycloalkyl Substituents (pages 6246–6253)

      Roman Savka and Herbert Plenio

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402830

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      Sterically very demanding N-heterocyclic carbenes and metal complexes thereof were synthesized by means of a classic sequence of Friedel–Crafts alkylation, nitration, and nitro-to-amine reduction to lead to the respective anilines, which were then converted into the respective azolium salts through established synthetic routes.

    14. Phosphorus Heterocycles

      The Unexpected Reactions of Boron Trihalides with 7-Phosphanorbornadiene Complexes (pages 6254–6260)

      Yanbo Mei, Rongqiang Tian, Zheng Duan and François Mathey

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402847

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      The reactions of BX3 (X = Cl, Br) with 7-R-7-phosphanorbornadiene–M(CO)5 (M = Mo, W) complexes yield products in which the RP–M(CO)5 unit is inserted into one of the carboxyl units of the phthalic derivatives through the collapse of the bridge. Six-membered heterocycles with quasiplanar structures can form from these derivatives, and ring contraction leads to five-membered oxocyclic products.

    15. Tetrafluoridobromates(III)

      Synthesis and Characterization of Barium Tetrafluoridobromate(III) Ba(BrF4)2 (pages 6261–6267)

      Sergey Ivlev, Vasily Sobolev, Markus Hoelzel, Antti J. Karttunen, Thomas Müller, Ivan Gerin, Roman Ostvald and Florian Kraus

      Article first published online: 26 NOV 2014 | DOI: 10.1002/ejic.201402849

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      The synthesis of Ba(BrF4)2 and its characterization by various methods is presented. Tetrafluoridobromates(III) may be promising materials for the dry-chemical recycling of solid noble-metal wastes.

    16. Iridium Catalysis

      [IrCp*(NCMe)2(PPh2Me)][PF6]2 as Catalyst for the Meyer–Schuster Rearrangement of Arylpropargylic Alcohols under Mild Conditions (pages 6268–6274)

      María Talavera, Jorge Bravo, Luca Gonsalvi, Maurizio Peruzzini, Cristiano Zuccaccia and Sandra Bolaño

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402882

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      [IrCp*(NCMe)2(PPh2Me)][PF6]2 efficiently catalyzes the rearrangement of propargylic alcohols into α,β-unsaturated aldehydes under mild conditions and without the need of a co-catalyst.

    17. P-Containing Betaines

      NMR Spectroscopic Studies on the 1:1 Interaction of Tris(hydroxymethyl)phosphine with Cinnamic Acids (pages 6275–6280)

      Dmitry V. Moiseev, Brian R. James and Aleksey V. Gushchin

      Article first published online: 26 NOV 2014 | DOI: 10.1002/ejic.201402889

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      A 1:1 reaction of (HOCH2)3P with cinnamic acids in acetone at 60 °C affords a phosphobetaine in 70–80 % yields. In methanol, the compounds decompose partially to a tertiary phosphine; the degree of decomposition decreases in the order Ar = o-C6H4OH > p-C6H4OH > C6H5.

    18. Microporous Materials

      ZrIV Coordination Polymers Based on a Naturally Occurring Phenolic Derivative (pages 6281–6289)

      Lucy Cooper, Nathalie Guillou, Charlotte Martineau, Erik Elkaim, Francis Taulelle, Christian Serre and Thomas Devic

      Article first published online: 14 NOV 2014 | DOI: 10.1002/ejic.201402891

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      An investigation into the reactivity of carboxyphenolic gallic acid with the ZrIV ion led to the isolation of four microcrystalline solids, amongst which one was found to be microporous. Such ligand/cation pairing strongly favours the formation of chain-like inorganic motifs.

    19. Glycoconjugated Tc Radiotracers

      Glycoconjugated Rhenium(I) and 99m-Technetium(I) Carbonyl Complexes from Pyridyltriazole Ligands Obtained by “Click Chemistry” (pages 6290–6297)

      Justyna A. Czaplewska, Frank Theil, Esra Altuntas, Tobias Niksch, Martin Freesmeyer, Bobby Happ, David Pretzel, Hendrik Schäfer, Makoto Obata, Shigenobu Yano, Ulrich S. Schubert and Michael Gottschaldt

      Article first published online: 25 NOV 2014 | DOI: 10.1002/ejic.201402881

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      A series of pyridyltriazole ligands containing sugar moieties and their corresponding Re(I) complexes were synthesized and characterized. Stability tests against histidine showed that the complexes are stable up to 2.5 h; the 99mTc-labeled complex was stable up to 24 h. All sugar-based ReI complexes were nontoxic against HepG2 cells; in contrast, the ReI complex without a carbohydrate moiety was toxic.

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