trans -Di-aqua-bis-( N , N , N '-tri-methyl-ethylenedi-amine)-nickel(II) dichloride.

In the title salt, [Ni(C 5 H 12 N 2 ) 2 (H 2 O) 2 ]Cl 2 , the asymmetric unit is comprised of half of the complex cation and a chloride ion with the Ni II atom of the cation situated about a twofold rotation axis. The six-coordinate Ni II atom of the cation is connected to four N atoms from two methyl-substituted ethyelenedi-amine ligands and two water mol-ecules in a slightly distorted octa-hedral environment. The five-membered chelate ring is in a slight envelope conformation. The crystal packing features O-H⋯Cl and N-H⋯Cl inter-molecular inter-actions with the Cl - ion forming weak bifurcated hydrogen bonds with nearby water mol-ecules and N-H inter-actions, leading to a three-dimensional supra-molecular network structure.