RPM3: A Multifunctional Microporous MOF with Recyclable Framework and High H2 Binding Energy

A microporous metal organic framework structure, Zn-2(bpdc)(2)(bpee)center dot 2DMF (DMF: N,N-dimethylformamide), has been synthesized via solvothermal reactions. The compound is a new member of the RPM series (RPM=Rutgers Recyclable Porous Material) that possesses a flexible and recyclable three-dimensional framework containing one-dimensional channels. It exhibits interesting and multifold functionality, including porosity, commensurate adsorption for hydrocarbons, high hydrogen binding energy (determined by isosteric heats of hydrogen adsorption and confirmed by van der Waals density functional calculations) as a result of multifold binding to aromatic ligands (determined by I R spectroscopy), strong photoluminescence emission, and reversible fluorescence quenching properties.