title: Tetra-aqua-bis-[3-(pyridin-4-yl)benzoato-κN]manganese(II).
abstract: In the title compound, [Mn(C(12)H(8)NO(2))(2)(H(2)O)(4)], the Mn(2+) ion lies on a twofold rotation axis and has a distorted N(2)O(4) octa-hedral coordination geometry formed by four water O atoms in the equatorial plane and two apical pyridyl N atoms. A three-dimensional network is formed in the crystal structure by multiple O-H⋯O hydrogen bonds between the coordin-ating water molecules and the free carboxylate groups.
authors.affiliation: Department of Environmental and Municipal Engineering, North China University of Water Conservancy and Electric Power, Zhengzhou 450011,  People's Republic of China.
authors.forename: Ru-Qin
authors.initials: RQ
authors.lastname: Gao
authors.forename: Guo-Ting
authors.initials: GT
authors.lastname: Li