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Updated: Jun 28, 2025

Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method
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Isotopic Effect in Double Proton Transfer Process of Porphycene Investigated by Enhanced QM/MM Method

Published on: July 19, 2019

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双键诱导的紧型H型π-π堆叠增强了二胺超分子中的快速载体转移,实现了高氧演变性能

Shulin Meng1, Yinan Hu1, Haocheng Zhao2

  • 1College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Taiyuan 030024, China.

Journal of colloid and interface science
|April 9, 2024
PubMed
概括

研究人员开发了一种新型的超分子光催化剂,使用改性二化物 (PDI). 这种设计通过改进的电荷转移和超薄纳米片中的迁移来增强光催化氧的进化.

关键词:
双键是双键的组成部分.H型的 π-π 堆叠方式.氧气的演变 氧气的演变公共投资投资公司 (PDI)光催化剂是一种光催化剂.

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Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level06:55

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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.
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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.
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The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.
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