Catena-Poly[[diaquabis(2-chloronicotinato-kappa2O,O')cadmium(II)]-mu-2-chloronicotinato-kappa3O,O':N

Abstract

In the title neutral coordination polymer, [Cd(C 6 H 3 ClNO 2 ) 2 -(H 2 O) 2 ] n , each Cd II ion is coordinated by one N and four O atoms from three 2-chloronicotinate ligands and by two aqua ligands, defining a distorted monocapped octahedral coordination geometry. Adjacent Cd atoms are linked by the pyridyl N atom and the bidentate carboxylate functional group of a 2-chloronicotinate ligand, forming a one-dimensional infinite chain along the b axis. The Cd...Cd distance is 8.112 (3) A. These chains are linked by O-H...O and O-H...N hydrogen bonds into a three-dimensional network structure.