Poly[[aqua(μ5-1H-benzimidazole-5,6-dicarboxylato)(μ4-1H-benzimidazole-5,6-dicarboxylato)dibarium] 4.5-hydrate]

Zhang, Heng-Qiang and Zheng, Xiu-Jun and Zhao, Chun-Xiang and Ng, Seik Weng (2011) Poly[[aqua(μ5-1H-benzimidazole-5,6-dicarboxylato)(μ4-1H-benzimidazole-5,6-dicarboxylato)dibarium] 4.5-hydrate]. Acta Crystallographica Section E: Structure Reports Online, 67 (6). m671-m672. ISSN 1600-5368, DOI https://doi.org/10.1107/S160053681101590X.

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Official URL: https://doi.org/10.1107/S160053681101590X


The polymeric title compound, {[Ba2(C9H 4N2O4)2(H2O)]·4. 5H2O} n, adopts a layer structure parallel to (001) in which adjacent BaII atoms are connected by two benzimidazole-5,6-dicarboxyl-ate dianions, one functioning in a 4-bridging mode and the other in μ5-bridging mode. The Ba atom having water in its coordination environment as well as the Ba atom without water exist in a nine-coordinate polyhedron of O atoms; the geometry is difficult to derive. Lattice water mol-ecules occupy the space between layers and inter-act with the layers through O - H⋯O, O - H⋯N and N - H⋯O hydrogen bonds. ne of the five lattice water molecules is equally disordered around an inversion centre and shows half-occupancy.

Item Type: Article
Uncontrolled Keywords: Rare earth elements; Ligands; Heterometallic coordination
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Nov 2019 07:37
Last Modified: 14 Nov 2019 07:37
URI: http://eprints.um.edu.my/id/eprint/23005

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