The one-dimensional polymer poly[[aqua(2,2′-bipyridine)cadmium(II)]-μ-trans-stilbene-4,4′-dicarboxylato

Huan-Yu Wang,Li-Hua Huo,Shan Gao,Jing-Gui Zhao

doi:10.1107/s1600536807065294

Huan-Yu Wang, Li-Hua Huo + Show 2 more

Open Access

https://doi.org/10.1107/s1600536807065294

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Abstract

In the title polymer, [Cd(C16H10O4)(C10H8N2)(H2O)]n, the CdII ion is in a strongly distorted octahedral geometry, being coordinated by two N atoms from a 2,2′-bipyridine ligand, three carboxylate O atoms from two symmetry-related trans-stilbene-4,4′-dicarboxylate dianions and one water molecule. The stilbene ligand lies on an inversion centre at the midpoint of the central C=C bond. This feature generates the polymeric structure: adjacent CdII ions are bridged by trans-stilbene-4,4′-dicarboxylate dianions, giving rise to a one-dimensional structure. The coordinated water molecule is involved in interchain O—H⋯O hydrogen bonds.

Highlights

CdII ion is in a strongly distorted octahedral geometry, being coordinated by two N atoms from a 2,20 -bipyridine ligand, three carboxylate O atoms from two symmetry-related transstilbene-4,40 -dicarboxylate dianions and one water molecule
The stilbene ligand lies on an inversion centre at the midpoint of the central C C bond
This feature generates the polymeric structure: adjacent CdII ions are bridged by transstilbene-4,40 -dicarboxylate dianions, giving rise to a onedimensional structure

Summary

Data collection

R factor = 0.027; wR factor = 0.073; data-to-parameter ratio = 16.1. CdII ion is in a strongly distorted octahedral geometry, being coordinated by two N atoms from a 2,20 -bipyridine ligand, three carboxylate O atoms from two symmetry-related transstilbene-4,40 -dicarboxylate dianions and one water molecule. The stilbene ligand lies on an inversion centre at the midpoint of the central C C bond. This feature generates the polymeric structure: adjacent CdII ions are bridged by transstilbene-4,40 -dicarboxylate dianions, giving rise to a onedimensional structure. The coordinated water molecule is involved in interchain O—H O hydrogen bonds. H atoms treated by a mixture of independent and constrained refinement max = 0.56 e Å3.

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We thank the Heilongjiang Province Natural Science

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