Synthesis, structural analysis, and gas-adsorption properties of a dibenzothiophene-based hydroxamate/zinc metal-organic framework

We report the mixed-ligand synthesis of a novel hydroxamate/zinc metal-organic framework (MOF) with a dibenzothiophene scaffold. The reaction of dibenzothiophene-3,7-dicarbohydroxamic acid, isonicotinic acid, and zinc nitrate under solvothermal conditions afforded a porous hydroxamate/zinc MOF. The structure and gas-adsorption properties toward N2, H2, CO2, and CH4 of the hydroxamate/zinc MOF were investigated. The dibenzothiophene-based hydroxamate/zinc MOF was newly synthesized using a mixed ligand synthetic method. Single-crystal X-ray crystallographic analysis and gas-adsorption measurements revealed that the MOF showed permanent porosity and good gas storage capacity.