Poly[piperazine-1,4-diium [μ 4-chlorido-μ 3- chlorido-tri-μ 2-chlorido-chloridodicadmate(II)] monohydrate]

Abstract

In the title compound, {(C 5H 14N 2)[Cd 2Cl 6]·H 2O} n, the asymmetric unit contains one piperazinediium cation, one [Cd 2Cl 6] 2- anion and a water molecule. The coordination geometries of the two Cd 2+ cations are distorted octahedral. Adjacent Cd II atoms are inter-connected alternately by paired chloride bridges, generating polymeric chains parallel to [010]. Neighbouring chains are connected by O - H⋯Cl hydrogen bonds involving the water molecules, forming layers at z = n/2. The crystal packing is further stabilized by intermolecular N - H⋯Cl and N - H⋯O hydrogen bonds, one of which is bifurcated.