title: Crystal structure of bis-(μ-2,3,4,5-tetra-fluoro-benzoato-κ(2) O:O')bis-[(1,10-phen-anthroline-κ(2) N:N')(2,3,4,5-tetra-fluoro-benzoato-κO)copper(II)] dihydrate.
abstract: In the title compound, [Cu2(C7HF4O2)4(C12H8N2)2]·2H2O, the Cu(II) ion has a square-pyramidal coordination sphere. The basal plane consists of two N atoms [Cu-N = 2.008 (3) and 2.032 (3) Å] from the phenanthroline ligand, and of two carboxyl-ate O atoms [Cu-O = 1.942 (3) and 1.948 (3) Å] from two 2,3,4,5-tetra-fluoro-benzoate anions. Another 2,3,4,5-tetra-fluoro-benzoate anion provides the apical carboxyl-ate O atom [Cu-O = 2.262 (3) Å] and bridges two Cu(II) ions into a binuclear centrosymmetric dimer. Intra-molecular π-π inter-actions between one of the tetra-fluoro-benzene rings and the middle of the phenenanthroline rings [3.617 (3) Å] stabilize the mol-ecular configuration. O-H⋯O hydrogen bonds between the lattice water mol-ecules and the unbound carboxyl-ate O atoms of the metal complexes leads to the formation of a chain structure parallel to [100].
authors.affiliation: Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline Materials, Department of Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China.
authors.forename: Junshan
authors.initials: J
authors.lastname: Sun
keywords: copper(II) complex; crystal structure; hydrogen bonding; phenanthroline ligands; tetra­fluoro­benzoate ligands