Two new coordination polymers of Co(II) with 1,1′-(1,4-butanediyl)bis(benzimidazole)

Autor:	Hengqing Jia, Yong-Hua Lin, Yan Xing, Ying-Chun Liu, Jian-Fang Ma, Jing-Fu Liu
Rok vydání:	2000
Předmět:	chemistry.chemical_classification Benzimidazole Pyrazine Stereochemistry Metal ions in aqueous solution Bridging ligand General Chemistry Polymer Catalysis chemistry.chemical_compound Crystallography chemistry Zigzag Materials Chemistry Molecule Carboxylate
Zdroj:	New Journal of Chemistry. 24:759-763
ISSN:	1369-9261 1144-0546
DOI:	10.1039/b004787m
Popis:	Two new compounds, [CoL2(H2O)2](NO3)2·8H2O (1) and [CoL(H2O)2(CH3CO2)2]·H2O (2), were obtained from self-assembly of the corresponding metal salts with 1,1′-(1,4-butanediyl)bis(benzimidazole) (L). In 1, each cobalt ion is coordinated to four nitrogen atoms from four molecules of L, and to two water molecules. Metal ions are bridged by L ligands to form infinite (4, 4) networks that contain 44-membered rings. The (4, 4) networks of 1 stack in a parallel fashion, resulting in the formation of large channels in the material. In 2, each cobalt ion is coordinated to two N atoms from two L molecules, two water molecules and two carboxylate O atoms from two acetate anions. Each L molecule is coordinated to two cobalt ions, acting as a bridging ligand as in 1. The bridged cobalt ions form an infinite zigzag chain structure.
Databáze:	OpenAIRE
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