Effects Materials of Organic Materials on Fluorescence Intensity of Rhodamine 6 G in Aqueous Solution
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- ENMANJI Koe
- And Electronic Devices Laboratory, Mitsubishi Electric Co.;
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- TAKAHASHI Kenzo
- And Electronic Devices Laboratory, Mitsubishi Electric Co.;
Bibliographic Information
- Other Title
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- ローダミン6Gの蛍光強度におよぼす各種有機物質の添加効果
- Effects of Organic Materials on Fluorescence Intensity of Rhodamine 6G in Aqueous Solution.
Abstract
It is well known that Rhodamine 6 G(R 6 G) dimerizes in higher concentration range than 2.5 x 10-4 mol dm-3 in aqueous solution and its fluorescence fades remarkably. Adding some detergents or complex forming compounds to this R 6 G dimer solution, its fluorescence intensity recovers to the level of that in alchol solution. From application of Kasha's theory on the difference spectrum between R 6 G monomer and dimer, we have estimated that the distance between xanthene planes of R 6 G is 6.28 A and these planes form the cross angle 40° in dimer molecules (Fig.2). In the case of addition of detergents to R 6 G aqueous solution the variation of R 6 G fluorescence intensity implies that the process from dimer to monomer is R 6 G2→ R 6 G2. Det→R 6 G in micelle. On the other hand for cyclodextrins and their derivative s and others, it cannot be contended that the additives with the large equilibrium constant for R 6 G monomer solution affect on recovering of fluorescence intensity more effectively to the dimer solution.
Journal
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- NIPPON KAGAKU KAISHI
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NIPPON KAGAKU KAISHI 1992 (1), 101-106, 1992-01-10
The Chemical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679335134720
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- NII Article ID
- 130004159737
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- ISSN
- 21850925
- 03694577
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed