Acta Cryst. (2007). E63, m2569-m2570  [ doi:10.1107/S160053680704473X ]

Diaquabis[₂-3-(1H-imidazol-5-yl)-2-(3-iminopropionamido)propionato-⁴N:N',N'',O]dicopper(II) dihydrate

J. Shen, Y.-Z. Li, D.-M. Zhang and J.-H. Chen

Abstract: In the crystal structure of the title compound, [Cu₂(C₉H₁₀N₄O₃)₂(H₂O)₂]·2H₂O, there are one and a half dicopper complexes in the asymmetric unit. One dicopper complex is located on a twofold rotation axis, while the other is in a general position. Each ligand bridges a pair Cu^II atoms, rendering the complex circular in form. Each Cu^II atom has a square-pyramidal coordination geometry. The basal positions are occupied by two N atoms and one O atom from one ligand and one N atom from another ligand, while the apical position is occupied by a coordinated water molecule. All chiral C atoms have an S configuration. In the crystal structure, there are uncoordinated water molecules that bridge neighboring complex molecules by hydrogen bonds, forming a three-dimensional structure.

Online 21 September 2007

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