“…Further, Zhan et al [290] report on the synthesis by hydrothermal reaction of 3D supramolecules synthesized from p-thioacetatebenzoic acid (H 2 L) and a combination of N-donor ligand of 4,4 0 -bipyridine (4,4 0 -bipy) with metal(II) ions with general formula [M(HL) 2 (4,4 0 -bipy) 2 (-H 2 O) 2 ]ÁH 2 O, M = Co(II), Zn(II) and Ni(II), which were characterized by as shown by X-ray single crystal analysis the complexes are isostructural. As shown by cyclic voltammetry the electron transfer reactions in the electrode reactions of Co(II) and Ni(II) complexes are irreversible.…”