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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences

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1865-7117
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Volume 63, Issue 5

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Preparation and Characterization of Macrocyclic Dinickel Complexes Coligated by Tetrazolate Ligands

Vasile Lozan
  • Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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/ Sergei V. Voitekhovich
  • Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya 14, 220030 Minsk, Belarus
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/ Pavel N. Gaponik
  • Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya 14, 220030 Minsk, Belarus
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/ Oleg A. Ivashkevich
  • Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya 14, 220030 Minsk, Belarus
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/ Berthold Kersting
  • Corresponding author
  • Institut für Anorganische Chemie, Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
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Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/znb-2008-0503

The dinuclear nickel(II) complex [Ni2LCl]+ (1), where (L)2− represents a 24-membered macrocyclic hexamine-dithiophenolate ligand, reacts readily with 5-R-tetrazolate ligands to give the complexes [Ni2L(RCN4)]+, where R = H (2), Me (3), Ph (4). The new complexes were either isolated as perchlorate or tetraphenylborate salts and fully characterized by elemental analysis, UV/Vis, and IR spectroscopy. The structures of 2[BPh4] · MeCN, 3[BPh4] · 2MeCN, and 4[BPh4] ·MeCN were determined by X-ray crystallography, showing that all tetrazolate units are in a 2,3-bridging mode to generate dioctahedral N3Ni(μ-S)2(μ-N4CR)NiN3 core structures. The RCN4 groups interact less strongly with the [Ni2L]2+ fragment than pyrazolate ligands (CH)3N2 as reflected in the longer Ni-N distances.

Keywords: Macrocyclic Ligands; Nickel Complexes; Coordination Chemistry; Tetrazolate Complexes

About the article

Received: 2008-01-31

Published Online: 2014-06-02

Published in Print: 2008-05-01


Citation Information: Zeitschrift für Naturforschung B, Volume 63, Issue 5, Pages 496–502, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-2008-0503.

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© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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