Structure and stability of carboxylate complexes. Part XIII. Crystal and molecular structure of aquobis(NN′-dimethylglycinato)copper(II) dihydrate

Abstract

The crystal and molecular structure of the title compound (orthorhombic, a= 7·05 ± 0·01, b= 31·7 ± 0·05, c= 6·51 ± 0·01 Å, space group P2₁2₁2₁ visual data, 1111 independent reflections) has been determined by three-dimensional X-ray methods and refined by least squares to R 0·12. The copper atom is five-co-ordinate; a square-based pyramid with the ligand water molecule at the apex (mean Cu–N 2·05, Cu–O 1·97; Cu–OH₂ 2·28 Å) and the basal ligands in the trans-configuration. The structural relationship between this and similar simple copper aminocarboxylate complexes is discussed.