catena-Poly[[diaquacadmium(II)]-μ-(methyl morpholino dichloromethylenediphosphonato)-κ3O,O′:O′′-[tetraaquacadmium(II)]-μ-(methyl morpholino dichloromethylenediphosphonato)-κ3O:O′,O′′]

Abstract

The asymmetric unit of the title compound, [Cd(C6H11Cl2NO6P2)(H2O)3]n, contains two octahedrally coordinated Cd atoms located in special positions, one on a twofold rotation axis and the other on a centre of symmetry. The metal atoms are connected by methyl morpholino dichloromethylenediphosphonate ligands into chains in the c-axis direction. These chains are further connected by O—H...O hydrogen bonds into a layer-like construction along (100).