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Poly[(μ-3,5-dinitro-2-oxidobenzoato)(μ-3-hydroxy­pyridine)copper(II)]

A new coordination polymer, [Cu(C(7)H(2)N(2)O(7))(C(5)H(5)NO)](n), exhibits a double-chain structure, in which 3,5-dinitro-2-oxidobenzoate and 3-hydroxy­pyridine both act as bridging ligands, ­connecting adjacent copper(II) centers to form an infinite double-stranded chain. The asymmetric unit conta...

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Detalles Bibliográficos
Autores principales: Yan, Jian-Bin, Song, Wen-Dong, Wang, Hao, Ji, Li-Li
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2008
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2961115/
https://www.ncbi.nlm.nih.gov/pubmed/21202198
http://dx.doi.org/10.1107/S1600536808009392
Descripción
Sumario:A new coordination polymer, [Cu(C(7)H(2)N(2)O(7))(C(5)H(5)NO)](n), exhibits a double-chain structure, in which 3,5-dinitro-2-oxidobenzoate and 3-hydroxy­pyridine both act as bridging ligands, ­connecting adjacent copper(II) centers to form an infinite double-stranded chain. The asymmetric unit contains one Cu(II) ion, one 3,5-dinitro-2-oxidobenzoate ligand and a 3-hydroxy­pyridine ligand. Coordination by one N atom and three O atoms from two different 3,5-dinitro-2-oxidobenzoate ligands and a 3-hydroxy­pyridine ligand creates a square-planar Cu(II) center, which is augmented by a less tightly bonded fifth phenol O atom to form a square-pyramidal five-coordinate complex with an essentially planar base. The double-stranded chains are stabilized by intra­chain π–π inter­actions [the centroid-to-centroid distance between adjacent aromatic rings is 3.719 (7) Å], and further linked through O—H⋯O hydrogen bonds, forming a three-dimensional supra­molecular network.