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Syntheses, structures and magnetic properties of two neutral coordination polymers of cobalt(II) containing a tailored aromatic diamine and pseudohalides as bridging units: Control of dimensionality by varying pseudohalide
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Syntheses, structures and magnetic properties of two neutral coordination polymers of cobalt(II) containing a tailored aromatic diamine and pseudohalides as bridging units: Control of dimensionality by varying pseudohalide

Sumitava Khan, Subhasis Roy, Kishalay Bhar, Rajarshi Ghosh, Chia-Her Lin, Joan Ribas 和 Barindra Kumar Ghosh
Inorganica Chimica Acta, 卷.398, 頁碼.40-45
03/2013
DOI: https://doi.org/10.1016/j.ica.2012.12.009

摘要

Antiferromagnetism Benzidine metal complexes Cobalt(II) coordination polymers Pseudohalide bridges X-ray structure Physical and Theoretical Chemistry Inorganic Chemistry Materials Chemistry
Two neutral coordination polymers of the types 2D [Co(bnzd)(dca) 2 ] n (1) and 3D [Co(bnzd)(N 3 ) 2 ] n (2) (bnzd = benzidine; dca = dicyanamide) have been synthesized and characterized. X-ray structural analyses reveal that each cobalt(II) center in 1 and 2 is hexacoordinated with octahedral geometry. Compound 1 has a 2D sheet structure with a (4,4) topology bridged through bidentate bnzd and double μ 1,5 dca units. An extended 3D network structure in 2 is seen formed by μ 1,3 -azide and bidentate bnzd bridges. Variable-temperature magnetic susceptibility measurements of 1 and 2 show antiferromagnetic coupling among the cobalt(II) centers mediated through pseudohalide bridges.© 2012 Elsevier B.V. All rights reserved.

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