DiaquabisN,N-Dimethylethylenediamine Squarate

Abstract

The crystal structure determination of the title compound, [Cu(C <inf>4</inf>H<inf>12</inf>N<inf>2</inf>)<inf>2</inf>(H<inf>2</inf>O) <inf>2</inf>](C<inf>4</inf>O<inf>4</inf>), is reported. It adopts an elongated octahedral trans-[CuN<inf>4</inf>O<inf>2</inf>] coordination geometry with the CuII atom located at a centre of symmetry. The axial Cu-O bond length is 2.6066 (17) Å, while the equatorial Cu-N bond lengths are 1.9849(16) and 2.1102 (16) Å. Intermolecular O-H⋯O and N-H⋯O hydrogen bonds are responsible for linking the complex cation to the squarate dianion, forming layers. The anion is also centrosymmetric. © 2004 International Union of Crystallography Printed in Great Britain - all rights reserved.