title: catena-Poly[[[[3-(2-pyrid-yl)-1H-pyrazole]manganese(II)]-μ-oxalato] sesquihydrate].
abstract: In the title compound, {[Mn(C(2)O(4))(C(8)H(7)N(3))]·1.5H(2)O}(n), the Mn(II) ion is chelated by two O,O'-bidentate oxalate ions and an N,N'-bidentate 3-(2-pyrid-yl)pyrazole mol-ecule, resulting in a distorted cis-MnN(2)O(4) octa-hedral geometry for the metal ion. The bridging oxalate ions generate wave-like polymeric chains propagating in [001]. The packing is consolidated by N-H⋯O and O-H⋯O hydrogen bonds. One of the water O atoms lies on a crystallographic twofold axis.
authors.affiliation: School of Chemistry and Life Science, Maoming University, Maoming 525000, People's Republic of China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: An
authors.forename: Ling
authors.initials: L
authors.lastname: Zhu