title: Bis(μ(2)-2-chloro-benzoato-κO:O')bis-[(2-chloro-benzoato-κO)(1,10-phenanthroline-κN:N')copper(II)] dihydrate.
abstract: In the title compound, [Cu(2)(C(7)H(4)ClO(2))(4)(C(12)H(8)N(2))(2)]·2H(2)O, the two crystallographically independent dinuclear complex mol-ecules, A and B, have different Cu⋯Cu separations, viz. 3.286 (1) Å in A and 3.451 (1) Å in B. Both independent mol-ecules reside on inversion centres, so the asymmetric unit contains a half-mol-ecule each of A and B and two water mol-ecules. Each Cu atom has a square-pyramidal environment, being coordinated by two O atoms from two bridging 2-chloro-benzoate ligands, one O atom from a monodentate 2-chloro-benzoate ligand and two N atoms from a 1,10-phenanthroline ligand. The water mol-ecules can also be considered as coordinating ligands, which complete the coordination geometry up to distorted octa-hedral with elongated Cu-O distances, viz. 3.024 (3) Å in A and 2.917 (3) Å in B. In the crystal, weak inter-molecular C-H⋯O inter-actions contribute to the consolidation of the crystal packing.
authors.affiliation: School of Chemistry and Chemical Engineering, Yulin University, Yulin 719000,  People's Republic of China.
authors.forename: Zhi-Fang
authors.initials: ZF
authors.lastname: Zhang
references.citation: Angew Chem Int Ed Engl. 2003 Oct 27;42(41):5039-44
references.pmid: 14595625
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