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

John R Miecznikowski; Jerry P Jasinski; Nicole F Flaherty; Emma E Mircovich; Allison N Smolinsky; Natalia R Bertolotti

doi:10.1107/S2414314620011827

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

IUCrdata. 2020 Sep 8;5(Pt 9):x201182. doi: 10.1107/S2414314620011827. eCollection 2020 Sep.

Authors

John R Miecznikowski¹, Jerry P Jasinski², Nicole F Flaherty¹, Emma E Mircovich¹, Allison N Smolinsky¹, Natalia R Bertolotti¹

Affiliations

¹ Department of Chemistry & Biochemistry, Fairfield Univerity, 1073 North Benson Road, Fairfield, CT 06824, USA.
² Department of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435, USA.

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 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.

Keywords: Ligand precursor; crystal structure; substituted ethylenediamine ligand.

Grants and funding

JRM acknowledges support from The Science Institute of the College of Arts and Sciences at Fairfield University for this work. Jerry P. Jasinski expresses thanks to the National Science Foundation Major Research Instrumentation Program (grant No. CHE-1039027) for funds to purchase an X-ray diffractometer. ANS and NRB acknowledge financial support from the Klimas Fund to support their summer research at Fairfield University.