Photophysics of Nile red in solution - Steady state spectroscopy

被引：118
|
作者：
Ghoneim, N [1 ]
机构：
[1] Univ Fribourg, Inst Chem Phys, CH-1700 Fribourg, Switzerland
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2000年 / 56卷 / 05期
关键词：
TICT state; quantum field; dipole moment; thermochromie; salvatochrome;
D O I：
10.1016/S1386-1425(99)00199-7
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Spectroscopic properties of Nile red (NR) in organic solvents, binary solvent mixtures have been studied. Remarkable shifts in the emission band positions have been observed as a function of the polarity of the medium. In solvent mixtures, these shifts can be explained by the process of specific solvation known as dielectric enrichment. The displacement of the fluorescence band was also measured as a function of temperature to obtain the thermochromic shifts (15 cm(-1) K-1 in methyltetrahydrofuran and 13.8 cm(-1) K-1 in butanol). Excited state dipole moments were calculated from these shifts. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：1003 / 1010
页数：8
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