Poly[[Diaquacaesium(I)]bis(?(3)-3-Carboxy-Pyrazine-2-Carboxylato)]

Abstract

The asymmetric unit of the title compound, [Cs(C6H3N2O4)2(H2O)2] n , contains one CsI cation on an inversion centre, one 3-carboxy-pyrazine-2-carboxyl-ate anion and one water mol-ecule. In the crystal structure, each anion is linked to three cations, while each cation is surrounded by six of the anions. In addition, each cation is coordinated by two water O atoms, raising the coordination number to ten. In the crystal structure, inter-molecular O - H⋯O and O - H⋯N hydrogen bonds contribute to the stabilization of the structure. © International Union of Crystallography 2007.