Crystal structure of bis­(μ-2,3,4,5-tetra­fluoro­benzoato-κ²O:O′)bis­[(1,10-phen­anthroline-κ²N:N′)(2,3,4,5-tetra­fluoro­benzoato-κO)copper(II)] dihydrate

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 carboxyl­ate O atoms [Cu—O = 1.942 (3) and 1.948 (3) Å] from two 2,3,4,5-tetra­fluoro­benzoate anions. Another 2,3,4,5-tetra­fluoro­benzoate anion provides the apical carboxyl­ate O atom [Cu—O = 2.262 (3) Å] and bridges two Cu^II ions into a binuclear centrosymmetric dimer. Intra­molecular π–π inter­actions between one of the tetra­fluoro­benzene rings and the middle of the phenenanthroline rings [3.617 (3) Å] stabilize the mol­ecular configuration. O—H...O hydrogen bonds between the lattice water mol­ecules and the unbound carboxyl­ate O atoms of the metal complexes leads to the formation of a chain structure parallel to [100].

Crystal structure of tri­aqua­(1,10-phen­anthroline-κ²N,N′)(2,4,5-tri­fluoro-3-meth­oxy­benzoato-κO¹)cobalt(II) 2,4,5-tri­fluoro-3-meth­oxy­benzoate

The title salt, [Co(C₈H₄F₃O₃)(C₁₂H₈N₂)(H₂O)₃](C₈H₄F₃O₃), was obtained under solvothermal conditions by the reaction of 2,4,5-tri­fluoro-3-meth­oxy­benzoic acid with CoCl₂ in the presence of 1,10-phenanthroline (phen). The Co^II ion is octa­hedrally coordinated by two N atoms [Co—N = 2.165 (2) and 2.129 (2) Å] from the phen ligand, by one carboxyl­ate O atom [Co—O = 2.107 (1) Å] and by three O atoms from water mol­ecules [Co—O = 2.093 (1), 2.102 (1) and 2.114 (1) Å]. The equatorial positions of the slightly distorted octa­hedron are occupied by the N atoms, the carboxyl­ate O and one water O atom. An intra- and inter­molecular O—H...O hydrogen-bonding network between the water-containing complex cation and the organic anion leads to the formation of ribbons parallel to [010].