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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >One- and Two-Photon Excitation of β-Carbolines in Aqueous Solution: pH-Dependent Spectroscopy, Photochemistry, and Photophysics
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One- and Two-Photon Excitation of β-Carbolines in Aqueous Solution: pH-Dependent Spectroscopy, Photochemistry, and Photophysics

机译：水溶液中β-咔啉的单光子和双光子激发：pH依赖光谱，光化学和光物理

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摘要

β-Carboline (βC) alkaloids are present in a wide range of biological systems and play a variety of significant photodependent roles. In this work, a study of the aqueous solution-phase photochemistry, photophysics, and spectroscopy of three important βCs [norharmane (nHo), harmane (Ho), and harmine (Ha)] and two βC derivatives [N-methylnorharmane (N-Me-nHo) and N-methylharmane (N-Me-Ho)] upon one- and two-photon excitation is presented. The results obtained depend significantly on pH, the ambient oxygen concentration, and the βC substituent and provide unique insight into a variety of fundamental photophysical phenomena. The data reported herein should not only help to understand the roles played by βC alkaloids in biological systems but should also help in the development of methods by which the photoinduced behavior of these important compounds can be controlled.
机译：β-Carboline（βC）生物碱存在于广泛的生物系统中，并发挥多种重要的光依赖性作用。在这项工作中，研究了三种重要βC[正壬烷（nHo），harmane（Ho）和harmine（Ha）]和两种βC衍生物[N-甲基正丁烷（N-提出了在单光子和双光子激发下的Me-nHo）和N-甲基异戊烷（N-Me-Ho）。获得的结果在很大程度上取决于pH值，环境氧浓度和βC取代基，并提供对各种基本光物理现象的独特见解。本文报道的数据不仅应有助于理解βC生物碱在生物系统中的作用，而且还应有助于开发可控制这些重要化合物的光诱导行为的方法。

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