Copper and cobalt coordination polymers based on isophthalate as bridging ligands and imidazole as capping ligands: Syntheses, crystal structures, spectroscopic characterization

Two novel coordination polymers, {[Cu(ip)(Him)2(DMF)]·H2O} (1) and Co(ip)(Him)2 (2), (ip = isophthalate, Him = imidazole) were prepared under hydrothermal conditions and their structures were determined by single-crystal X-ray diffraction. X-ray structural analysis reveals that 1-D zigzag metal-organic chains are connected to form a 3-D supramolecular framework in compounds 1 and 2 by hydrogen-bonding and π–π interaction or other intermolecular contacts. Infrared, UV–vis, and elemental analysis were performed to characterize the two compounds. The result of magnetic determination for compound 2 shows there exist antiferromagnetic interaction between magnetic centers.