Acta Cryst. (2004). E60, m1139-m1141  [ doi:10.1107/S1600536804017064 ]

A two-dimensional hydrogen-bonding supramolecular architecture of bis(2,2'-bipyridine)[(p-phenylenedioxy)diacetato]copper(II) tetrahydrate

M. Du, H. Cai and X.-J. Zhao

Abstract: In the crystal structure of the title complex, [Cu(bda)(bipy)₂]·4H₂O [H₂bda = (p-phenylenedioxy)diacetic acid or benzene-1,4-dioxyacetic acid (C₁₀H₁₀O₆) and bipy = 2,2'-bipyridine (C₁₀H₈N₂)], the Cu^II centre is pentacoordinated, with a square-pyramidal geometry comprising four N atoms from two chelating bipy ligands and one carboxylate O atom of the bda ligand. The other three uncoordinated carboxylate O atoms of the bda ligand act as the acceptors of four O-HO hydrogen bonds from the water molecules, among which another four O-HO hydrogen-bonding interactions are also observed, resulting in a two-dimensional supramolecular pattern.

Online 17 July 2004

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