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控制光交换动力学与强光-物质合在一个空洞

Hongfei Zeng¹, Juan B Pérez-Sánchez², Christopher T Eckdahl³

¹Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States.

Journal of the American Chemical Society

|August 29, 2023

概括

强烈的光物质合改变了分子光交换. 虽然 merocyanine 切换减缓,但 fulgide 切换加速,这表明对激发状态反应动态有直接影响.

科学领域:

摄影化学
物理化学
光谱学

背景情况:

光化学通常通过弱光-物质合发生.
强的合会产生极子,混合的光物质状态,改变分子激发状态.
强对象对共价光化学的影响仍未得到充分研究.

研究的目的:

研究强光-物质合对光交换运动的影响.
检查光腔如何影响分子光反应的动态.

主要方法:

在光腔中研究了螺旋/米洛和基光开关.
通过光谱监测光交换动力学.
分析了强对反应速率的影响.

主要成果:

螺旋/美洛的光交换在腔内减速.
在强的合条件下,Fulgide的光交换动力学得到了加速.
对不同类型的光开关进行了明显的动力修改.

结论:

强烈的光物质合显著影响光交换的动力学.
修改的梅洛因切换可能与辐射衰变或空腔光子数有关.
加速的基切换表明激发状态反应途径的直接改变.

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