Crystal Structure And Electrochemical Properties Of An Interpenetrating Mof Constructed By 5-I-Butoxyisophthalate And Rigid N-Donor Ligands

A new coordination polymer, [Ni(iBuOIPA)(dpb)] (1), was synthesized from 1,4-bis(pyridyl)benzene, 5-i-butoxyisophthalate and nickel acetate by hydrothermal method. Its structure was determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectra and TG analyses. Complex1was crystallized in monoclinic crystal system,I2/aspace group, and the cell parameters werea = 31.214(2) angstrom,b = 9.9687(6) angstrom,c = 22.2981(16) angstrom,V = 6757.1(8) angstrom(3),Z = 8. Polymer1displays a 2D layer which are further interpenetrated each other to construct a three-dimensional network. Electrochemical measurements reveal that the Ni-MOF modified electrode has good catalytic activity to oxygen evolution reaction with a lower overpotential of only 170 mV at 5 mA cm(-2)in KOH solution.