A robust Mn catalyst for H2O2 disproportionation in aqueous solution

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题名:	A robust Mn catalyst for H2O2 disproportionation in aqueous solution
作者:	李韋宗;Lee, Wei-Tsung;Xu, Song;Dickie, Diane A.;Smith, Jeremy M.
贡献者:	理學院化學學系
关键词:	Aqueous solutions;Homogeneous catalysis;Macrocycles;Manganese;Peroxides;Reaction mechanisms
日期:	2013-01-01
上传时间:	2026-04-21 14:04:01 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： AbstractThe pyridinophane complex [Mn(Py2N2)(H2O)2]2+ catalyses the disproportionation of H2O2 in aqueous solution over a wide pH range. Kinetic investigations reveal an induction period, which is proposed to involve the formation of a hydroperoxo intermediate, as well as evidence for catalyst self‐inhibition. A catalytic cycle involving mononuclear intermediates has been proposed. Spectroscopic investigations under turnover conditions are consistent with this proposal and show that the resting state of the catalyst is a mononuclear MnII complex. The robustness of the catalyst is evidenced by its ability to achieve turnover numbers of 58000 in aqueous solution. 其他題名： Eur. J. Inorg. Chem 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2013-08-06 出處： European Journal of Inorganic Chemistry, 2013-08, Vol.2013 (22-23), p.3867-3873 資源來源： Wiley Online Library - AutoHoldings Journals 版權： Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 1434-1948 識別號： EISSN: 1099-0682 識別號： DOI: 10.1002/ejic.201300184
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