title: Diaqua-(5-methyl-1H-pyrazole-3-carboxyl-ato)(4-nitro-benzoato)copper(II).
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.
authors.affiliation: College of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, People's Republic of China.
authors.forename: Fei-Long
authors.initials: FL
authors.lastname: Hu
authors.forename: Xian-Hong
authors.initials: XH
authors.lastname: Yin
authors.forename: Yu
authors.initials: Y
authors.lastname: Feng
authors.forename: Yan
authors.initials: Y
authors.lastname: Mi
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Zhang