理解光诱导对称-破缺电荷分离。

IF 1.1 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Chimia Pub Date : 2025-04-30 DOI:10.2533/chimia.2025.263

Johannes Wega

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引用次数: 0

摘要

对称破缺电荷分离（SB-CS）是一种光致电子转移反应，其中发色团同时充当受体和供体。这种尚不为人所知的反应可能使许多应用中有趣的长期电荷分离成为可能。我们证明了SB-CS可以与苝一起实现双分子化，并讨论了有利于它的因素。此外，利用芘双色团体系，我们讨论了间色团耦合的影响，以及如何微调光物理以产生SB-CS，而不是其他过程，如准分子形成。

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Understanding Photoinduced Symmetry- Breaking Charge Separation.

Symmetry-breaking charge separation (SB-CS) is a photoinduced electron transfer reaction in which the chromophore acts as both the acceptor and the donor. This reaction which is still poorly understood may enable long-lived charge separation interesting for many applications. Here we show that SB-CS can be realised bimolecularly with perylene and discuss the factors favouring it. Furthermore, using a pyrene bichromophoric system, we discuss the influence of interchromophore coupling and how the photophysics can be fine-tuned to yield SB-CS over other processes such as excimer formation.

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来源期刊

Chimia 化学-化学综合

CiteScore

1.60

自引率

0.00%

发文量

144

审稿时长

2 months

期刊介绍： CHIMIA, a scientific journal for chemistry in the broadest sense covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.