European Journal of Inorganic Chemistry

Cover image for Vol. 2013 Issue 18

June 2013

Volume 2013, Issue 18

Pages 3120–3269

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Masthead
    5. Graphical Abstract
    6. News
    7. Further Masthead
    8. Short Communications
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    1. You have free access to this content
      Structural Diversity of Coordination Cores in Homoleptic Tetraaryltin(IV) Dioxolane, Aldehyde and Imines: The First Octacoordinated Double Helicate Tetraorganotin(IV) Compound (Eur. J. Inorg. Chem. 18/2013)

      Ioana Barbul, Richard A. Varga and Cristian Silvestru

      Article first published online: 12 JUN 2013 | DOI: 10.1002/ejic.201390078

      Thumbnail image of graphical abstract

      The cover picture shows the diversity of coordination geometries due to intramolecular coordination provided by the pendant arms of the organic substituents in five homoleptic tetraorganotin(IV) compounds. The first example of a mononuclear, octacoordinated tetraorganotin(IV) compound, [2-(O=CH)C6H4]4Sn, and its double helicate nature is depicted at the center, surrounded by two hexacoordinated and two heptacoordinated complexes. Details are discussed in the article by I. Barbul, R. A. Varga, and C. Silvestru on p. 3146 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. Masthead
    5. Graphical Abstract
    6. News
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    1. You have free access to this content
      Structural Diversity of Coordination Cores in Homoleptic Tetraaryltin(IV) Dioxolane, Aldehyde and Imines: The First Octacoordinated Double Helicate Tetraorganotin(IV) Compound (page 3120)

      Ioana Barbul, Richard A. Varga and Cristian Silvestru

      Article first published online: 12 JUN 2013 | DOI: 10.1002/ejic.201300437

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      We were interested in pendant arm ligands with potential for intramolecular coordination as an alternative for bulky organic substituents used to stabilize unusual organometallic species...

      This and more about the story behind the cover in the Cover Profile and about the research itself on p. 3146 ff.

  3. Masthead

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    1. Masthead: Eur. J. Inorg. Chem. 18/2013 (page 3122)

      Article first published online: 12 JUN 2013 | DOI: 10.1002/ejic.201390079

  4. Graphical Abstract

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    1. Graphical Abstract: Eur. J. Inorg. Chem. 18/2013 (pages 3123–3127)

      Article first published online: 12 JUN 2013 | DOI: 10.1002/ejic.201390080

  5. News

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  6. Further Masthead

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    1. Masthead: Eur. J. Inorg. Chem. 18/2013 (page 3132)

      Article first published online: 12 JUN 2013 | DOI: 10.1002/ejic.201390082

  7. Short Communications

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    1. Electropolymerisation

      An Electropolymerisable Pyridine-Functionalised Gold Bis(dithiolene) Complex (pages 3133–3136)

      Sandrina Oliveira, Mónica L. Afonso, Sandra I. G. Dias, Isabel C. Santos, Rui T. Henriques, Sandra Rabaça and Manuel Almeida

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201300222

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      Pyridine-substituted dithiolene gold complex [Au(4-pdddt)2] shows three redox processes corresponding to the interconversion between dianionic, monoanionic, neutral and cationic states, the last one corresponding to a polymerised species obtained as an electrodeposited film.

    2. Phosphanylidene Complexes

      Terminal Alkylphosphanylidene Organo­tantalum(V) Complexes (pages 3137–3140)

      Anne Grundmann, Menyhárt B. Sárosi, Peter Lönnecke, René Frank and Evamarie Hey-Hawkins

      Article first published online: 15 MAY 2013 | DOI: 10.1002/ejic.201300500

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      The first terminal organometallic alkylphosphanylidenetantalum(V) complexes are obtained with cyclohexyl and isopropyl groups at phosphorus, whereas adamantyl and tert-butyl substituents result in the formation of a paramagnetic tantalum(IV) complex. DFT studies show that the terminal cyclohexyl and isopropyl phosphanylidene complexes are stable towards dimerization and dissociation.

    3. Size-Specific Coodination Polymers

      Rational Design and Synthesis of Cyano-Bridged Coordination Polymers with Precise­ Control of Particle Size from 20 to 500 nm (pages 3141–3145)

      Ya-Dong Chiang, Ming Hu, Yuichiro Kamachi, Shinsuke Ishihara, Kimiko Takai, Yoshihiro Tsujimoto, Katsuhiko Ariga, Kevin C.-W. Wu and Yusuke Yamauchi

      Article first published online: 15 MAY 2013 | DOI: 10.1002/ejic.201300112

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      The particle sizes in cyano-bridged coordination polymers consisting of NiII–C≡N–FeII units are precisely controlled from 20 to 500 nm by changing the amount of sodium citrate added as a chelating agent and/or by using a different Fe source. Our synthetic concept is widely applicable to other coordination polymers, which would be beneficial to various applications in the future.

  8. Full Papers

    1. Top of page
    2. Cover Picture
    3. Cover Profile
    4. Masthead
    5. Graphical Abstract
    6. News
    7. Further Masthead
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    1. Helical Organotin Compounds

      Structural Diversity of Coordination Cores in Homoleptic Tetraaryltin(IV) Dioxolane, Aldehyde and Imines: The First Octacoordinated Double Helicate Tetraorganotin(IV) Compound (pages 3146–3154)

      Ioana Barbul, Richard A. Varga and Cristian Silvestru

      Article first published online: 9 APR 2013 | DOI: 10.1002/ejic.201300245

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      Homoleptic tetraorganotin(IV) compounds with hexa-, hepta- and octacoordinated metal centres were prepared. A solvent- and catalyst-free green synthetic method was used to obtain three (imino)aryltin derivatives. A mononuclear, octacoordinated, double helical tetraorganotin(IV) compound is reported.

    2. Tungsten Phosphanylborane Complexes

      Coordination Properties of Multidentate Phosphanylborane Ligands in Tungsten Nitrosyl Complexes (pages 3155–3166)

      Rajkumar Jana, Olivier Blacque, Yanfeng Jiang and Heinz Berke

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201201565

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      The coordination properties of phosphanylborane ligands in newly synthesized tungsten carbonyl nitrosyl complexes are explored by multinuclear NMR and IR spectroscopy, single-crystal X-ray structure analyses, and DFT calculations.

    3. Coordination Polymers

      5-Cyanotetrazolate as a Ligand and Linker in Copper(II) Complexes and Coordination Polymers (pages 3167–3177)

      Barbara Szafranowska and Johannes Beck

      Article first published online: 15 MAY 2013 | DOI: 10.1002/ejic.201201483

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      Cyanotetrazolate (ctz) is a versatile ligand towards CuII ions and allows different kinds of linkage. Eight complexes and coordination polymers are presented with structures representing 1D chain motifs, 2D layered structures, mononuclear and dinuclear complexes. The complexes show different magnetic coupling phenomena at low temperatures.

    4. Perfluoroarylated Cage Complexes

      Perfluoroarylation of Iron(II) Di- and Hexaiodoclathrochelates – Synthesis, X-ray Structure, and Properties of the First Cage Complexes with Inherent Pentafluoro­phen­yl Substituent(s) (pages 3178–3184)

      Oleg A. Varzatskii, Irina N. Denisenko, Sergey V. Volkov, Alexander S. Belov, Alexander V. Dolganov, Anna V. Vologzhanina, Valentin V. Novikov, Yurii N. Bubnov and Yan Z. Voloshin

      Article first published online: 15 MAY 2013 | DOI: 10.1002/ejic.201300189

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      Iron(II) clathrochelates with two and six inherent pentafluorophenyl substituents were obtained by copper-promoted perfluoroarylation of their iodine-containing macrobicyclic precursors and characterized by analytical and spectral methods and X-ray diffraction.

    5. Borophosphates

      Synthesis and Structure of KPbBP2O8 – A Congruent Melting Borophosphate with Nonlinear Optical Properties (pages 3185–3190)

      Hongyi Li, Yi Zhao, Shilie Pan, Hongping Wu, Hongwei Yu, Fangfang Zhang, Zhihua Yang and Kenneth R. Poeppelmeier

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201300009

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      KPbBP2O8 is synthesized and its structure is determined by single-crystal X-ray diffraction. Thermal and XRD analysis show that KPbBP2O8 melts congruently. IR and UV/Vis spectroscopy and second-harmonic generation measurements are also performed on the reported material.

    6. Nickel Complexes

      Pentaglycine–NiII Complex: From Kinetics to Structure (pages 3191–3194)

      Zeev Gaisin, Gary Gellerman and Dan Meyerstein

      Article first published online: 8 MAY 2013 | DOI: 10.1002/ejic.201300039

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      We measured the nucleophilic properties of the terminal amine of a Ni(peptide) complex as a tool to elucidate the ligation sites of the cation.

    7. Luminescent Materials

      A Luminescent Material: La3Cl(CN2)O3 Doped with Eu3+ or Tb3+ Ions (pages 3195–3199)

      Mariusz Kubus, David Enseling, Thomas Jüstel and H.-Jürgen Meyer

      Article first published online: 8 MAY 2013 | DOI: 10.1002/ejic.201300224

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      The new luminescent material La3Cl(CN2)O3:Ln 5 mol-% (Ln = Eu3+ or Tb3+) was successfully synthesized by a simple reaction of LaOCl with Li2CN2 (+ LnCl3).

    8. Metallocenes

      Synthesis and Characterisation of Selected Group 4 Metallocene Complexes with 1,2-Bis(4′,4′,5′,5′-tetramethyl[1′,3′,2′]dioxaborolan-2′-yl)acetylene (pages 3200–3205)

      Kai Altenburger, Perdita Arndt, Anke Spannenberg, Wolfgang Baumann and Uwe Rosenthal

      Article first published online: 16 MAY 2013 | DOI: 10.1002/ejic.201300236

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      Group 4 metallocenes and bis(tetramethyldioxaborolanyl)acetylene gave different products: “Cp2Ti” afforded a dihydroindenyl complex. “rac-(ebthi)Ti”, “Cp*2Ti” and “Cp2Zr(py)” led to metallacyclopropenes, whereas “Cp2Zr” and “rac-(ebthi)Zr” yielded metallacyclopentadienes. One of the titanacyclopropenes reacts with CO2 to a titanacyclofuranone.

    9. Manganese Complexes

      Syntheses, Crystal Structures, and Magnetic Properties of MnIII(L)phosphinate Complexes (L = meso-tetraphenylporphyrin or Schiff base) (pages 3206–3216)

      Sébastien Richeter, Joulia Larionova, Jérôme Long, Arie van der Lee and Dominique Leclercq

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201300246

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      The synthesis of MnIII complexes capped by tetradentate ligands and assembled by phosphinate ligands is reported. The phosphinate coordination mode is influenced by the steric hindrance of both the phosphinate and the tetradentate ligands. Two 1D polymeric structures have been obtained, one of which presents single chain magnet (SCM) behaviour.

    10. MRI Eu Chelators

      Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands (pages 3217–3223)

      Miroslav Gál, Filip Kielar, Romana Sokolová, Šárka Ramešová and Viliam Kolivoška

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201300252

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      CV, AC voltammetry, DC polarography and impedance spectroscopy were utilized to elucidate the mechanism, stability constants and heterogeneous rate constants of the charge transfer of the reduction/oxidation of the EuIII/EuII ion pair in the presence the newly developed ligands 1,4-DOTA(GAC12)2 and 1,7-DOTA(GAC12)2 with potential use as MRI contrast agents.

    11. Transfer Hydrogenation

      Synthesis and Characterization of Half-Sandwich Ruthenium Complexes Containing Aromatic Sulfonamides Bearing Pyr­id­inyl Rings: Catalysts for Transfer Hydrogenation of Acetophenone Derivatives (pages 3224–3232)

      Serkan Dayan, Nilgun Ozpozan Kalaycioglu, Jean-Claude Daran, Agnès Labande and Rinaldo Poli

      Article first published online: 14 MAY 2013 | DOI: 10.1002/ejic.201300266

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      A series of new half-sandwich RuII complexes containing sulfonamide ligands were synthesized and characterized by NMR and FTIR spectroscopy and elemental analysis, and two of the complexes were further analyzed by X-ray diffraction. We investigated the catalytic activity of these complexes in the transfer hydrogenation of a few acetophenone derivatives with the use of 2-propanol in the presence of base.

    12. Donor–Acceptor Systems

      Donor–Acceptor Complexes of Normal and Abnormal N-Heterocyclic Carbenes with Group 13 (B, Al, Ga) Elements: A Combined DFT and Atoms-in-Molecules Study (pages 3233–3239)

      Satyajit Sarmah, Ankur Kanti Guha and Ashwini K. Phukan

      Article first published online: 14 MAY 2013 | DOI: 10.1002/ejic.201300329

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      Donor–acceptor bonds in the complexes of normal and abnormal N-heterocyclic carbenes with tricoordinate group 13 elements (B, Al and Ga) have been studied by quantum chemistry. The substituents attached to the group 13 atoms are found to have a profound effect on the strengths of the donor–acceptor bonds.

    13. Azacrown Bridging Ligands

      Influencing the Stability of Diaminomethane-Containing Azacrown Ether Ligands in the Presence of Transition-Metal Ions (pages 3240–3248)

      William J. Gee and Stuart R. Batten

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201201564

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      Diaza-18-crown-6 ligands functionalised with diaminomethane linkers are unstable in the presence of selected divalent transition-metal ions. Pretreatment of the ligands with potassium salts prevents degradation by blocking the central coordination region. Iodide redox chemistry also affects the coordination-polymer motif.

    14. Manganese Schiff Base Complexes

      Synthesis, X-ray Crystal Structures, and Spectroscopic, Electrochemical, and Theoretical Studies of MnIII Complexes of Pyridoxal Schiff Bases with Two Diamines (pages 3249–3260)

      Sumita Naskar, Subhendu Naskar, Ray J. Butcher, Montserrat Corbella, Arturo Espinosa Ferao and Shyamal Kumar Chattopadhyay

      Article first published online: 14 MAY 2013 | DOI: 10.1002/ejic.201300047

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      MnIII compounds of N,N′-bis(pyridoxylidene)ethylenediamine and N,N′-bis(pyridoxylidene)-1,3-propanediamine show a quasireversible MnIII/MnII couple at ca. 0 V (vs. Ag/AgCl) and two to three overlapping oxidations at 1.0–1.3 V, which are assigned to MnIII/MnIV and phenolate oxidations.

    15. Ca and Sr Complexes

      Sterically Encumbered Amidinates and Guanidinates of Calcium and Strontium (pages 3261–3269)

      Carsten Glock, Claas Loh, Helmar Görls, Sven Krieck and Matthias Westerhausen

      Article first published online: 10 MAY 2013 | DOI: 10.1002/ejic.201300080

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      In N,N′-bis(diisopropylphenyl)amidinates and guanidinates of calcium the metal center is effectively shielded. Therefore drastic reaction conditions are required, with the disadvantage that side reactions such as ether cleavage and subsequent reactions also occur.

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