Crystal structure of catena-poly[[chlorido-(4,4'-dimethyl-2,2'-bi-pyridine-κ(2) N,N')copper(II)]-μ-chlorido]

Rafaela Nita; Jeffrey R Deschamps; Scott A Trammell; D Andrew Knight

doi:10.1107/S2056989015008944

Crystal structure of catena-poly[[chlorido-(4,4'-dimethyl-2,2'-bi-pyridine-κ(2) N,N')copper(II)]-μ-chlorido]

Acta Crystallogr E Crystallogr Commun. 2015 May 13;71(Pt 6):624-7. doi: 10.1107/S2056989015008944. eCollection 2015 Jun 1.

Authors

Rafaela Nita¹, Jeffrey R Deschamps², Scott A Trammell², D Andrew Knight¹

Affiliations

¹ Chemistry Department, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901, USA.
² Naval Research Laboratory, 4555 Overlook Ave, Washington, DC 20375, USA.

Abstract

The title compound, [CuCl2(C12H12N2)] n , was obtained via a DMSO-mediated dehydration of Cu(4,4'-dimethyl-2,2'-bi-pyridine)-copper(II)·0.25H2O. The central Cu(II) atom is coordinated in a distorted trigonal-bipyramidal geometry by two N atoms of a chelating 4,4'-dimethyl-2,2'-bi-pyridine ligand [average Cu-N = 2.03 (3) Å] and three Cl atoms, one terminal with a short Cu-Cl bond of 2.2506 (10) Å, and two symmetry-equivalent and bridging bonds. The bridging Cl atom links the Cu(II) ions into chains parallel to [001] via one medium and one long Cu-Cl bond [2.3320 (10) and 2.5623 (9) Å]. The structure displays both inter- and intra-molecular C-H⋯Cl hydrogen bonding.

Keywords: copper bipyridine complex; crystal structure; dehydration; hydrogen bonding.