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catena-Poly[[[2-(2-pyridyl)-1H-benzimidazole]cobalt(II)]-μ-benzene-1,4-dicarboxylato]

✍ Scribed by Xia, Chang-Kun ;Wu, Wen ;Chen, Qiu-Yun ;Xie, Ji-Min

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
742 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title coordination polymer, [Co(C~8~H~4~O~4~)(C~12~H~9~N~3~)]~n~, the Co^II^ atom exists in an octahedral coordination environment formed by four carboxylate O atoms from two benzene-1,4-dicarboxylate ligands, and two N atoms from the 2-(2-pyridyl)benzimidazole ligand. Bridging by the benzene-1,4-dicarboxylate ligand leads to a zigzag chain structure, and intermolecular N—H...O hydrogen bonds as well as π–π interactions between the pyridyl ring and the benzene ring of the 2-(2-pyridyl)benzimidazole ligand (centroid–centroid distances = 3.678 and 3.697 Å) link the chains into a three-dimensional framework.

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In the title compound, [Cu(C~8~H~4~O~4~)(C~5~H~8~N~2~)~2~]~__n__~, each Cu^II^ atom (site symmetry \overline{1}) is four-coordinated by two carboxylate O atoms from two different benzene-1,3-dicarboxylate ligands and two N atoms from two 1-ethyl-1__H__-imidazole ligands in a __trans__-CuN~2~O~2~ squ