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Poly-fluorinated metallo-corroles as biomimetic catalyst for epoxidation and H{208}O{208}-dismutation

Authors Yam, Fei
Issue Date 2004
Summary Corrole chemistry has recently received a new impetus because of the discovery of some interesting and peculiar ligand properties of this macrocycle. In this thesis, two types of the metallocorrole reactivities will be reported; one is the catalytic epoxidation by metallocorrole, followed by extending the homogeneous corrole catalyst into heterogeneous catalyst. The other is to demonstrate the catalase-like activity of di-manganese bis-corrolate complex for rapid dismution of H2O2 into H2O and O2. In the studies of catalytic epoxidation by metallocorrole, we have reported the synthesis of corroles bearing different number of halogen, and have demonstrated the substituents effect on corrole changes the rate of epoxidation. Also showing that the applicability of silica gel supported manganese corrolate complexes as catalyst, with easy recovery and improved stability. In the catalase model studies, we have synthesized a new xanthene bridged biscorrole and its di-manganese (III) complex. We also have demonstrated the di-manganese biscorroles's surprisingly high activity towards H2O2 dismutation, suggesting that cofacial biscorrole is a superior platform for modeling the biomimetic multi-electron transfer process.
Note Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2004
Language English
Format Thesis
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