Acta Cryst. (2008). E64, m1159-m1160  [ doi:10.1107/S160053680802549X ]

Diaquabis(8-chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purinato-N⁷)copper(II) dihydrate

J.-H. Deng, Z.-X. Xiong, Y.-P. Yi, L. Yuan, H.-R. Guo, M.-P. Guo and L. Liu

Abstract: The title mononuclear copper(II) complex, [Cu(C₇H₆ClN₄O₂)₂(H₂O)₂]·2H₂O, based on 8-chlorotheophylline (HCt), has the Cu atom at a center of symmetry in a slightly distorted trans square-planar geometry coordinated by two N atoms of two deprotonated HCt ligands and two O atoms of water molecules. The crystal packing is stabilized by hydrogen bonds involving deprotonated HCt ligands, coordinated water molecules and uncoordinated solvent water molecules.

Online 13 August 2008

Copyright © International Union of Crystallography
IUCr Webmaster