Abstract
In the title salt, [Ni(C5H12N2)2(H2O)2]Cl2, the asymmetric unit is comprised of half of the complex cation and a chloride ion with the NiII atom of the cation situated about a twofold rotation axis. The six-coordinate NiII 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.
Highlights
In the title salt, [Ni(C5H12N2)2(H2O)2]Cl2, the asymmetric unit is comprised of half of the complex cation and a chloride ion with the NiII atom of the cation situated about a twofold rotation axis
The six-coordinate NiII atom of the cation is connected to four N atoms from two methyl-substituted ethyelenediamine ligands and two water molecules in a slightly distorted octahedral environment
The five-membered chelate ring is in a slight envelope conformation
Summary
A tris-ethylenediaminenickel(II) complex has been reported (Swink & Atoji, 1960). Substituted tris-ethylenediamine complexes with methyl groups instead of hydrogen atoms bonded to the nitrogen atoms have not been reported, to the best of our knowledge. In this communication, we report the preparation, spectroscopic characterization and single-crystal structure analysis of a nickel(II) complex that contains an N,N,N’-trimethylendiamine ligand
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