皮秒吸收光谱法研究分子间质子转移的溶剂依赖性

Laser Chemistry Pub Date : 1900-01-01 DOI:10.1155/LC.7.41

M. Kaschke, A. Granesz, J. Kleinschmidt

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引用次数: 1

摘要

介绍了光激发8-羟基-1,3,6-芘三磺酸盐(HPTS)分子间质子转移的皮秒吸收研究。测定了不同溶剂下去质子化激发HPTS的形成时间。根据一个简单的簇模型，讨论了这种形成时间对水-甲醇混合物中甲醇组分的依赖。测定了质子在不同胶束体系中的转移速率，得到了质子供体胶束周围特性的信息。

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Investigation of Solvent Dependence of Intermolecular Proton Transfer by Picosecond Absorption Spectroscopy

A picosecond absorption study on the intermolecular proton transfer of photoexcited 8-hydroxy-1,3,6-pyrene trisulfonate (HPTS) is presented. The time of formation of deprotonated excited HPTS was measured for various solvents. The dependence of this time of formation on the methanol fraction in watermethanol mixtures is discussed in terms of a simple cluster model. Proton transfer rates were determined in different micellar systems yielding information on the character of the micellar surrounding of the proton donator.

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Laser Chemistry

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