Acta Cryst. (2006). E62, m219-m221  [ doi:10.1107/S1600536805043126 ]

Di--phosphonomethylcarboxylato-bis[(1,10-phenanthroline)copper(II)] dihydrate

Q.-H. Zhao, L. Du and R.-B. Fang

Abstract: In the title dinuclear complex, [Cu₂(C₂H₃O₅P)₂(C₁₂H₁₀N₂)₂]·2H₂O, the unique Cu^II atom is coordinated in the basal plane by two N atoms from a 1,10-phenanthroline ligand and two (P-O) O atoms from a phosphonocarboxylate ligand, while the distorted square-pyramidal coordination is completed by the apical coordination of a (C-O) O atom from a phosphonocarboxylate ligand. The phosphonocarboxylate system acts as a tribidendate bridging ligand, forming a centrosymmetric dimer. In the crystal structure, molecules are linked via O-HO hydrogen bonds to form a two-dimensional framework. In addition, significant - stacking interactions contribute to the stabilization of the structure.

Online 7 January 2006

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