Acta Cryst. (2009). E65, m210  [ doi:10.1107/S160053680900169X ]

Diaqua(5-methyl-1H-pyrazole-3-carboxylato)(4-nitrobenzoato)copper(II)

F. Hu, X. Yin, Y. Feng, Y. Mi and S. Zhang

Abstract: In the title complex, [Cu(C₇H₄NO₄)(C₅H₅N₂O₂)(H₂O)₂], the Cu^II ion is coordinated in a slightly distorted square-pyramidal enviroment. The basal plane is formed by an N atom and an O atom from a 5-methyl-1H-pyrazole-3-carboxylate ligand and by two O atoms from two water ligands. The apical position is occupied by a carboxylate O atom from a 4-nitrobenzoate ligand. In the crystal structure, intermolecular O-HO and N-HO hydrogen bonds link complex moleclues, forming extended chains parallel to the a axis.

Online 23 January 2009

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