title: Crystal structure ofcatena-poly[di-ammonium [di-μ-oxalato-cuprate(II)]].
abstract: The structure of the title compound, {(NH4)2[Cu(C2O4)2]}n, at 100 K has monoclinic (P21/c) symmetry with the CuIIatom on an inversion center. The compound has a polymeric structure due to long Cu⋯O inter-actions which create [Cu(C2O4)2] chains along theaaxis. The structure also displays inter-molecular N-H⋯O hydrogen bonding, which links these chains into a three-dimensional network.
authors.affiliation: Department of Chemistry and Chemical Biology, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Diane A
authors.initials: DA
authors.lastname: Dickie
authors.affiliation: 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.
authors.forename: Richard A
authors.initials: RA
authors.lastname: Kemp
keywords: ammonium; copper; crystal structure; hydrogen bonding; oxalate