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Poly[[aqua­(μ(5)-1H-benzimidazole-5,6-dicarboxyl­ato)(μ(4)-1H-benzimidazole-5,6-dicarboxyl­ato)dibarium] 4.5-hydrate]

The polymeric title compound, {[Ba(2)(C(9)H(4)N(2)O(4))(2)(H(2)O)]·4.5H(2)O}(n), adopts a layer structure parallel to (001) in which adjacent Ba(II) atoms are connected by two benzimidazole-5,6-dicarboxyl­ate dianions, one functioning in a μ(4)-bridging mode and the other in a μ(5)-bridging mode. Th...

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Detalles Bibliográficos
Autores principales: Zhang, Heng-Qiang, Zheng, Xiu-Jun, Zhao, Chun-Xiang, Ng, Seik Weng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3120458/
https://www.ncbi.nlm.nih.gov/pubmed/21754581
http://dx.doi.org/10.1107/S160053681101590X
Descripción
Sumario:The polymeric title compound, {[Ba(2)(C(9)H(4)N(2)O(4))(2)(H(2)O)]·4.5H(2)O}(n), adopts a layer structure parallel to (001) in which adjacent Ba(II) atoms are connected by two benzimidazole-5,6-dicarboxyl­ate dianions, one functioning in a μ(4)-bridging mode and the other in a μ(5)-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 mol­ecules occupy the space between layers and inter­act 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.