The title complex, [CaZn(C3H2O4) 2(H2O)4]n, is a two-dimensional polymer and consists of CaO8 and ZnO6 polyhedra linked together by malonate ligands. The CaII cation, lying on a twofold axis, is coordinated by two water molecules and six malonate O atoms. The ZnII cation, which lies on an inversion center in an octahedral environment, is coordinated by four malonate O atoms in an equatorial arrangement and two water molecules in axial positions. The Zn - O and Ca - O bond lengths are in the ranges 2.0445(12)-2.1346(16) and 2.3831(13)-2.6630(13), respectively. The structure comprises alternatin...
