期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 32, 页码 12470-12473出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja205520u
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资金
- NIH [RO1GM45881-19]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0840520] Funding Source: National Science Foundation
Metastable Mn-peroxo species are proposed to form as key intermediates in biological oxidation reactions involving O-2 and C-H bond activation. The majority of these have yet to be spectroscopically characterized, and their inherent instability, in most cases, precludes structural characterization. Cysteinate-ligated metal-peroxos have been shown to form as reactive intermediates in both heme and nonheme iron enzymes. Herein we report the only examples of isolable Mn(III)-alkylperoxo species, and the first two examples of structurally characterized synthetic thiolate-ligated metal-peroxos. Spectroscopic data, including electronic absorption and IR spectra, and ESI mass spectra for O-16 vs O-18-labeled metastable Mn(III)-OOR (R = Bu-t, Cm) are discussed, as well as preliminary reactivity.
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