菁染料的线性和非线性(CARS)拉曼光谱研究

A. Lau , K. Kneipp , W. Werncke , K. Lenz , H.-J. Weigmann , D. Fassler , G. Hinzmann
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引用次数: 3

摘要

采用自发拉曼散射和CARS方法,研究了3,3′-二乙基-2,2′苯并噻吩均系化合物的甲醇水溶液和甲醇水溶液随着溶剂中水含量的增加而二聚化的现象。在我们的实验精度范围内(+−10 cm−1),单体和二聚体的显色体系的拉曼波数测量没有差异。
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Linear and nonlinear (CARS) raman spectroscopic investigations of cyanine dyes

The methanolic and methanolic aqueous or aqueous solutions of the first three representatives of the homologeous series of 3,3′-diethyl-2,2′ benzthiacyanines exhibiting an increasing dimerisation with an increasing amount of water in the solvent have been investigated by spontaneous Raman scattering and CARS with different optimum excitation frequencies. Within the accuracy of our experiments (+−10 cm−1) there are no differences between the measured Raman wave numbers of the chromophoric system of monomers and dimers.

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