title: Diaqua-bis(2-pyridylphospho-nato N-oxide-κO,O)cobalt(II).
abstract: In the title complex, [Co(C(5)H(5)NO(4)P)(2)(H(2)O)(2)], the Co(II) ion, which lies on a crystallographic inversion center, is coordin-ated by four O atoms from two bidentate 2-phospho-nato-pyridine N-oxide ligands and two O atoms from two water ligands in a slightly distorted octa-hedral environment. Mol-ecules are inter-linked by three O-H⋯O hydrogen bonds and one weak C-H⋯O inter-action, forming a three-dimensional supra-molecular structure.
authors.affiliation: Department of Chemistry & Materials Engineering, Changshu Institute of Technology, Changshu, 215500 Jiangsu, People's Republic of China.
authors.forename: Yun-Sheng
authors.initials: YS
authors.lastname: Ma
authors.forename: Tian-Xian
authors.initials: TX
authors.lastname: Lu