عنوان به زبان ديگر :
Synthesis, Characterization and Studies on Catalytic Behavior of Mn(II) Complex with 2, 2י Bipyridine, 1, 1י Dioxide Ligand within Nanoreactors of MCM-41.
چكيده لاتين :
Manganese (II) complex with 2, 2י bipyridine, 1, 1י dioxide (bpdo) ligand was immobilized within nanoreactors of MCM-41. The immobilized complex was characterized by powder x-ray diffraction (XRD), nitrogen adsorption desorption, and FTIR. The pore volume, surface area and pore diameter of MCM-41 decreased after immobilization of Mn complex. Three bands observed at 1250, 1220 cm^-1 and 757 cm^-1 are attributed to the NO stretching and bending vibrations respectively. It was found that the immobilized Mn complex on MCM-41 successfully catalyzed the oxidation of cyclohexene, styrene, norbornene, and trans-stilbene with tert-butylhydroperoxide (TBHP).With the exception of cyclo-hexene, the other three olefins afforded the corresponding epoxides efficiently. Preparation and catalytic effect of Mn salt either on MCM-41 or modified MCM-41 with aminopropyltriethoxysilane; MCM-41(AP) will be discussed.
