Bis(2,2′-bipyridine)(5,5′-iminoditetrazolato)cadmium(II) 2,2′-bipyridine hemisolvate monohydrate

Abstract

The title complex, [Cd(C2HN9)(C10H8N2)2]·0.5C10H8N2·H2O, was prepared under hydrothermal reaction conditions. The asymmetric unit contains the cadmium complex, half a 2,2′-bipyridine solvent molecule and a solvent water molecule. The CdII ion is coordinated by four N atoms from two 2,2′-bipyridine ligands and two N atoms from an HBTA− anion ligand [where H2BTA is N,N-bis(1H-tetrazol-5-yl)amine], forming an octahedral geometry. The complex is linked into a three-dimensional network by O—H...N and N—H...N hydrogen bonds and by the stacking interactions of rings, with distances of 3.5–3.7 Å between the atoms of two parallel 2,2′-bipyridine rings.