‘Click’ silica immobilisation of metallo-porphyrin complexes and their application in epoxidation catalysis

Immobilization of cobalt porphyrin on CeO2@SiO2 core–shell nanoparticles as a novel catalyst for selective oxidation of diphenylmethane

“…Furthermore, no new peaks appear which indicates no presence of new species. It also disagrees with the opinion of the formation of a -oxo-bridged dimer [27]. However, the intensity of the peaks of the used catalyst was lowered than that of the fresh one.…”

“…Many kinds of covalent bonds such as C O C, C N and N C O can be employed to anchor cobalt porphyrin on the surface of supports [13,26,27]. In this study, N C O was formed via It indicates cobalt porphyrin was anchored on the surface of silica via amide.…”

Immobilization of metalloporphyrins on CeO2@SiO2 with a core-shell structure prepared via microemulsion method for catalytic oxidation of ethylbenzene

“…FT-IR may be used to achieve the information of [10,26]. The peak observed at 1098 cm −1 is ascribed to stretching vibrations of Si -O -Si in silica [10,26].…”

“…The peak observed at 1098 cm −1 is ascribed to stretching vibrations of Si -O -Si in silica [10,26]. When metalloporphyrins are anchored on CS via amide bond, the peak at 1670 cm −1 is attributed to the C=O group in amide (N-C=O) [27].…”

“Click”-reaction: An alternative tool for new architectures of porphyrin based derivatives

“…In this report manganese containing materials were synthesized and applied as catalysts in the epoxidation of a plethora of alkenes (cyclooctene, cyclohexene and styrene) with various oxidants (iodosylbenzene, tert-butylperoxide) [101]. The …”