title: Penta-aqua-(1H-benzimidazole-5,6-di-carboxyl-ato-κN)cobalt(II) penta-hydrate.
abstract: In the title mononuclear complex, [Co(C(9)H(4)N(2)O(4))(H(2)O)(5)]·5H(2)O, the Co(II) atom exhibits a distorted octa-hedral geometry involving an N atom of a 1H-benzimidazole-5,6-dicarboxyl-ate ligand and five water O atoms. A supra-molecular network is generated through inter-molecular O-H⋯O hydrogen-bonding inter-actions involving the coordinated and uncoordinated water mol-ecules and the carboxyl O atoms of the organic ligand. An inter-molecular N-H⋯O hydrogen bond is also observed.
authors.affiliation: College of Science, Guang Dong Ocean University, Zhanjiang 524088, People's Republic of China.
authors.forename: Wen-Dong
authors.initials: WD
authors.lastname: Song
authors.forename: Hao
authors.initials: H
authors.lastname: Wang
authors.forename: Shi-Jie
authors.initials: SJ
authors.lastname: Li
authors.forename: Pei-Wen
authors.initials: PW
authors.lastname: Qin
authors.forename: Shi-Wei
authors.initials: SW
authors.lastname: Hu