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Updated: Jun 4, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

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在共价有机框架中通过甲氧基团工程操纵p-π共振,以实现高效的光催化进化

Zhipeng Luo1, Shipeng Zhu1, Huanglan Xue1

  • 1State Key Laboratory of Photocatalysis on Energy and Environment, and Key Laboratory of Advanced Carbon-Based Functional Materials, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China.

Angewandte Chemie (International ed. in English)
|December 23, 2024
PubMed
概括

甲基团通过改善电荷动力学和质量转移来增强光催化作用的共价有机框架 (COF),促进进化反应. 这种分子工程策略优化了聚合物光催化剂的性能.

关键词:
电荷分离器的使用方法协价有机框架 协价有机框架的进化是因为的进化.光催化作用的光催化p-π 共振效应的共振效应

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相关概念视频

Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
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Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
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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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