Diaquabis(4,4′-bipyridineN,N′-dioxide-κO)bis(dicyanamido)cadmium(II)

Abstract

The structure of the title compound, [Cd(dca)2(bpno)2(H2O)2], contains a Cd atom coordinated by bpno (4,4′-bi­pyridine N,N′-dioxide, C10H8N2O2), dca [dca is dicyan­amide, N(CN)2−] and two water mol­ecules. The central CdII ion is located at an inversion center, coordinated by two N atoms from dca, two O atoms from bpno and two O atoms from water mol­ecules, in an approximately octahedral geometry. This discrete structure is further extended to form a two-dimensional layer structure involving weak hydrogen bonds. The compound is isostructural with its cobalt analog [Aneta, Zdirad, Augustin, Jiri & Marius (2003). Polyhedron, 22, 789–794].