Hemi[4-(carboxymethoxy)phenylsulfanylacetato-κ2O,O′]hemi[4-(carboxymethylsulfanyl)phenyloxyacetato]bis(1,10-phenanthroline-κ2N,N′)cadmium(II) 4-(carboxymethoxy)phenylsulfanylacetate dihydrate

Abstract

The reaction of cadmium nitrate with 4-(carboxy­methoxy)­phenyl­sulfanyl­acetic acid in the presence of phenanthroline at a pH of 6 affords the salt, [Cd(C10H9O5S)(C12H8N2)2](C10H9O5S)·2H2O. The Cd atom in the cation is chelated by two phenanthroline units and one carboxyl­ate from the monoanionic ligand in a distorted octahedral geometry. The coordinated monoanion shows disorder which results in a 50:50 mixture of 4-(carboxy­methoxy)­phenyl­sulfanyl­acetate and 4-(carboxy­methyl­sulfanyl)­phenyl­oxy­acetate coordinated to the cadmium. The cation and uncoordinated anion interact to form a linear chain.