Diaquabis[5-(5-carboxy-2-pyridyl)tetrazolato-κ2N1,N5]cadmium(II) dihydrate

Abstract

In the title complex, [Cd(C7H4N5O2)2(H2O)2]·2H2O, the water-coordinated CdII atom (overline1 symmetry) is coordinated by four N atoms from two symmetry-related 3-carboxypyidyl-6-tetrazolato ligands, forming a distorted octahedral complex. The uncoordinated water molecules connect the mononuclear units into a layer structure through O—H...N and O—H...O hydrogen bonds; similar hydrogen bonds between coordinated water molecules and anionic groups result in a three-dimensional structure.