Low-dimensional compounds containing cyanido groups. Part XXXIV. Structure, spectral and magnetic properties of the first complex with pyridylbenzimidazole and nonlinear pseudohalide anion
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Ivan Potočňák
,
Oleksandr Bukrynov
Abstract
From the system CuCl2 – pbi – NaN(CN)2−, polymeric [CuCl(μ1,5-dca)(pbi)]n·nH2O (1) complex (dca=dicyanamide, pbi=2-(2-pyridyl)benzimidazole) was isolated and characterized by structure analysis, spectral and magnetic measurements. Infrared spectroscopy confirmed the presence of pbi, dca and water molecules in 1. Its solid-state structure is formed by infinite chains running along the b axis. In the chain, the Cu(II) atom is penta-coordinated by two nitrogen atoms of chelate pbi ligand, by two nitrile nitrogen atoms of bridging μ1,5-dca and by chloride ligand which occupies the apical position of tetragonal pyramid around the Cu(II) atom. Asymmetric unit is supplemented by one molecule of solvated water, which along with chlorine atom serves as acceptors in intermolecular hydrogen bonds and along with π–π interactions create a 3D supramolecular structure. Magnetic measurements revealed the presence of a weak ferromagnetic exchange interaction J/kB=0.11 K.
Funding source: European Regional Development Fund
Award Identifier / Grant number: ITMS26220120047
Funding statement: This work was supported by the Slovak Research and Development Agency under contract Nos. APVV-14-0078 and APVV-14-0073. The financial support from ERDF (European Regional Development Fund) under the contract No. ITMS26220120047 is acknowledged. O.B. thanks Visegrad Scholarship Program for the financial support during his stay at P.J. Šafárik University in Košice. S.V. acknowledges the support of the VolkswagenStiftung, Germany (via grant 151110). A.K. acknowledges the support of the P.J. Šafárik University in Košice under contract No. VVGS-PF-2018-787. The authors are very grateful to Dr. Michal Dušek from the Institute of Physics of the Czech Academy of Sciences in Prague for help with measuring of the structure. The crystallographic measurements used instruments of the ASTRA lab established within the Operation program Prague Competitiveness – project CZ.2.16/3.1.00/24510.
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©2018 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Graphical Synopsis
- Recent advances in the chemistry of uranium halides in anhydrous ammonia
- The correct symmetry of the six-fold twin in β-Ca11B2Si4O22
- The allotwinning of KCa3Te5O12Cl3: an OD interpretation
- Zippeite from Cap Garonne, France: an example of reticular twinning
- Structural studies on copper and nitrogen doped nanosized anatase
- Low-dimensional compounds containing cyanido groups. Part XXXIV. Structure, spectral and magnetic properties of the first complex with pyridylbenzimidazole and nonlinear pseudohalide anion
Artikel in diesem Heft
- Frontmatter
- Graphical Synopsis
- Recent advances in the chemistry of uranium halides in anhydrous ammonia
- The correct symmetry of the six-fold twin in β-Ca11B2Si4O22
- The allotwinning of KCa3Te5O12Cl3: an OD interpretation
- Zippeite from Cap Garonne, France: an example of reticular twinning
- Structural studies on copper and nitrogen doped nanosized anatase
- Low-dimensional compounds containing cyanido groups. Part XXXIV. Structure, spectral and magnetic properties of the first complex with pyridylbenzimidazole and nonlinear pseudohalide anion
