| 학회 |
한국공업화학회 |
| 학술대회 |
2008년 봄 (05/09 ~ 05/10, 한양대학교(안산)) |
| 권호 |
12권 1호 |
| 발표분야 |
촉매 |
| 제목 |
Mechanistic Study of Hydrogen Peroxide Disproportionation by Dimanganese Complex |
| 초록 |
To study hydrogen peroxide disproportionation catalysis by [TPA2MnII2(µ-Cl)2](ClO4)2 complex, UV-Vis, EPR, ESI-MS spectroscopic approaches, as well as kinetic study, were used. Electronic spectra changes upon addition of hydrogen peroxide were observed and the oxidized [TPA2MnIIIMnIV(μ-O)2]3 complex was identified based on its distinct λmax at 439 nm, 558 nm and 657 nm. After catalysis, the dimanganese complex was decomposed and the [TPA2MnII](ClO4)2 monomer was isolated and characterized. Attempts to characterize the unknown intermediate using EPR spectroscopy suggested formation of low-valent dimanganese complexes of MnIIMnIII and MnIIIMnIII. Formation of these intermediates was detected by Low-temp UV-Vis and ESI-MS measurements. |
| 저자 |
한재홍1, 신복규2, 김유진3, 이정봉1, 노동이2
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| 소속 |
1Metalloenzyme Research Group, 2BET Research Institute and Department of Biotechnology, 3Chung-Ang Univ. |
| 키워드 |
Disproportionation; EPR; ESI-MS; Hydrogen peroxide; Manganese; Mechanism; UV-Vis
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| E-Mail |
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