极地的
水溶液
化学
加合物
光致变色
组合化学
吸光度
相容性(地球化学)
接受者
光化学
有机化学
材料科学
物理
色谱法
天文
复合材料
凝聚态物理
作者
Javier Read de Alaniz,Julie A. Peterson,Natalia M. Neris
出处
期刊:Chemical Science
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:14 (45): 13025-13030
摘要
Donor-acceptor Stenhouse adducts (DASAs) are an exciting class of photoswitches due to their facile tunability, visible light absorbance, and negative photochromism. While they have shown use in a variety of applications, to date all reported DASA derivatives have low equilibrium and/or poor photoswitching in polar protic solvents, which is vital for moving towards applications in biological systems. We demonstrate a strategy to introduce a substitution on the DASA triene that results in derivatives that are stable and have high dark equilibrium of the open form in polar protic solvents. Decreasing the charge separation of these new derivatives also allows for reversible switching in polar and protic solvents including THF : water mixtures.
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