Eepoxidation reaction catalyzed heterogeneously by Fe(III)complex- Polyoxometalate compound

Nowadays, inorganic–organic hybrid materials based on polyoxometalates (POMs) are extensively attracted because of theirpotential applications in catalysis, gas storage, magnetism, photochemistry and electrochemistry.Their features of an oxygen-rich surface, high charge density and controllable size mean POMs are becoming popular inorganic building blocks. A hybrid complex based on covalent interaction between of 1,2-bis(p-aminophenylthio)ethane (BAPTE), and a Lindqvist type polyoxometalate, Mo6O19 2−, was prepared. This new hybrid catalyst, Fe(III) complex -POM, was characterized by 1H NMR, FT- IR, and UV-Vis spectroscopic methods and cyclic voltammetry. The catalytic activity of iron(III) complex -POM hybrid material was investigated for epoxidation reaction were produced in good to excellent yield. The reusability of this catalyst was also investigated.