Diaqua-(5-methyl-1H-pyrazole-3-carboxyl-ato)(4-nitro-benzoato)copper(II)

Fei-Long Hu; Xian-Hong Yin; Yu Feng; Yan Mi; Shan-Shan Zhang

doi:10.1107/S160053680900169X

Diaqua-(5-methyl-1H-pyrazole-3-carboxyl-ato)(4-nitro-benzoato)copper(II)

Acta Crystallogr Sect E Struct Rep Online. 2009 Jan 23;65(Pt 2):m210. doi: 10.1107/S160053680900169X.

Authors

Fei-Long Hu¹, Xian-Hong Yin, Yu Feng, Yan Mi, Shan-Shan Zhang

Affiliation

¹ College of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, People's Republic of China.

Abstract

In the title complex, [Cu(C(7)H(4)NO(4))(C(5)H(5)N(2)O(2))(H(2)O)(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-carboxyl-ate ligand and by two O atoms from two water ligands. The apical position is occupied by a carboxylate O atom from a 4-nitro-benzoate ligand. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link complex moleclues, forming extended chains parallel to the a axis.