No abstract

The title complex, [Cu2(C7H3F2O2)4(H2O)2], has a centrosymmetric dinuclear structure in which two symmetry‐related CuII centers are bridged by four carboxyl­ate groups of distinct 2,6‐difluoro­benzoate ligands, the Cu⋯Cu separation being 2.6139 (2) Å. Each CuII center is five‐coordinated by four O atoms of carboxyl­ate groups in the basal plane and the O atom of a water mol­ecule in the apical position.

In the title compound, [Cu2(C7H3ClNO4)4]n, the coordination geometry around each CuII ion is distorted square-pyramidal. The CuO5 coordination is formed by five O atoms from the carboxyl­ate groups of five 5-chloro-2-nitro­benzoate ligands. This coordination leads to the formation of centrosymmetric binuclear units which are edge-shared, forming a linear chain along the a axis, with the CuII ions alternately separated by 2.5891 (4) and 3.1763 (4) Å. The chains are inter­connected into a three-dimensional network by C—H⋯O inter­actions.

In the title binuclear copper(II) complex, [Cu2(C7H3ClNO4)4(H2O)2], each of the two independent CuII center is five-coordinated by four O atoms of the carboxyl­ate groups in the basal plane and one O atom of a water mol­ecule in the apical position, in a distorted square-pyramidal geometry. The Cu—Cu distance is 2.6458 (4) Å. In the crystal structure, the dinuclear units are linked into a three-dimensional network by O—H⋯O, C—H⋯O and C—H⋯Cl hydrogen bonds. One of the Cl atoms is disordered over two positions with occupancies of 0.650 (2) and 0.350 (2).