Synthesis, characterization and crystal structure of one Co(II) complex with 4,4′-bisimidazolylbiphenyl and m-phthalic acid

One new title compound [Co(BIBP)(mpa)]n (1) (BIBP = 4,4′-biimidazole biphenyl, mpa = m-phthalic acid) has been synthesized under solvothermal condition. The title compound was characterized by IR spectra, thermal analysis, single crystal and powder X-ray diffraction. The results prove that the alliance of BIBP and aromatic carboxylic acids is good for diversity of the getatable structure. Magnetic susceptibility measurements indicate that compound 1 exhibits antiferromagnetic coupling between adjacent Co(II) ions. In addition, the photochemical properties have been investigated.