The remarkable catalytic activity of the saturated metal organic framework V-MIL-47 in the cyclohexene oxidation

The remarkable catalytic activity of the saturated metal organic framework MIL-47 in the epoxidation of cyclohexene is elucidated by means of both experimental results and theoretical calculations

A detailed study of the catalytic performance of V, Co and Cu MOFs in the oxidation of cyclohexene

In this research, the catalytic performance of V-, Co- and Cu-MOFs, prepared with 1,4-benzenedicarboxylic (BDC) and/or 1,3,5-benzenetricarboxylic (BTC) ligands, is discussed for the oxidation of cyclohexene. Several parameters have been examined, for example: solvent, temperature and oxidans. The detailed product distributions and recyclability of these materials are discussed. Surprisingly, the highest conversions and highest yields of epoxide are achieved with the coordinatively saturared V-MOF, MIL-47. Indeed, these MOFs have a completely different geometry and coordination of the metal centre, which will be discussed in relation to the catalytic results. The Cu-MOFs studied have a Cu2 or Co2 paddle-wheel structure in which the metal centres have a square coordination to bidentate carboxylate ligands. The latter can be unsaturated (activated CuBTC and CuBDC) or saturated (CoBDC-DABCO). The studied V-MOF, MIL-47, has a three-dimensional orthorhombic structure in which every V centre is completely saturated [1]