Fabrication of Unique Mixed-Valent CoCo and CuCu Metal-Organic Frameworks (MOFs) for Desulfurization of Fuels: A Combined Experimental and Theoretical Approach toward Green Fuel.

Herein, metal-organic framework (MOF)-based adsorbents are designed with distinct hard and soft metal building units, namely, [CoCo(PD)(BP)] () and [CuCu(PD)(BP)] (), where HPD = pyrazine-1,4-diide-2,3-dicarboxylic acid and BP = 4,4'-bipyridine. The designed MOFs were characterized via spectral and SCXRD techniques, which confirm the mixed-valent states (+1 and +2) of the metal ions. Topological analysis revealed the rare and topologies for Co MOF, while Cu-MOF exhibits a unique topology in the 8-c net (point symbol for net: {4·6}).