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Updated: Jul 26, 2025

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
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Published on: August 7, 2018

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增强的电子封闭 p 块位在扩展的宏循环结合中,促进氧的减少到过氧化

Yan Xu1, Shanyong Chen1,2,3, Long Chen1

  • 1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China.

The journal of physical chemistry letters
|June 21, 2023
PubMed
概括

研究人员开发了一种新的催化剂 - - 多甲氨酸 (InPPc),用于高效的过氧化 (H2O2) 生产. 这种分子催化剂通过控制氧减少反应 (ORR) 期间的电子相互作用来增强选择性.

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Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.
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Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
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Introduction
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