Characterization of iron(III) tetramesitylporphyrin and microperoxidase-8 incorporated into the molecular sieve MCM-41

Schunemann V; Trautwein AX; Rietjens IMCM; Boersma MG; Veeger C; Mandon D; Weiss R; Bahl K; Colapietro C; Piech M; Austin RN

Inorganic Chemistry, Vol.38, No.21, 4901-4905, 1999

Schunemann V, Trautwein AX, Rietjens IMCM, Boersma MG, Veeger C, Mandon D, Weiss R, Bahl K, Colapietro C, Piech M, Austin RN

The hydroxylation of aniline with H2O2 as the oxidant has been utilized to probe the catalytic activity of the water-insoluble model porphyrin in a water-soluble MCM-41 system and to investigate the catalytic activity and operational stability of microperoxidase-8 upon its incorporation into MCM-41. Our results demonstrate that metalloporphyrins supported on MCM-41 can catalyze cytochrome P450-like reactions in aqueous solutions but point out limitations in the use of MCM-41 as a solid support for heterogeneous catalysts.

Keywords:MESOPOROUS MCM-41;CATALYSTS;OXIDATION;SILICA;PORPHYRINS;COMPLEX;ALKENE;HYDROXYLATION;SURFACE;C-60