Crystal structure of catena-poly[di-ammonium [di-μ-oxalato-cuprate(II)]]

Diane A Dickie; Richard A Kemp

doi:10.1107/S2056989016017631

Crystal structure of catena-poly[di-ammonium [di-μ-oxalato-cuprate(II)]]

Acta Crystallogr E Crystallogr Commun. 2016 Nov 10;72(Pt 12):1780-1782. doi: 10.1107/S2056989016017631. eCollection 2016 Dec 1.

Authors

Diane A Dickie¹, Richard A Kemp²

Affiliations

¹ Department of Chemistry and Chemical Biology, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131, USA.
² Department of Chemistry and Chemical Biology, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131, USA; Advanced Materials Laboratory, Sandia National Laboratories, 1001 University Blvd SE, Albuquerque, NM 87106, USA.

Abstract

The structure of the title compound, {(NH₄)₂[Cu(C₂O₄)₂]} _n , at 100 K has monoclinic (P2₁/c) symmetry with the Cu^II atom on an inversion center. The compound has a polymeric structure due to long Cu⋯O inter-actions which create [Cu(C₂O₄)₂] chains along the a axis. The structure also displays inter-molecular N-H⋯O hydrogen bonding, which links these chains into a three-dimensional network.

Keywords: ammonium; copper; crystal structure; hydrogen bonding; oxalate.