Electronic Absorption and Fluorescence Spectra of Fluorescein in Aprotic Solvents
作者:
Deborah Dibbern-brunelli,
TeresaDib Zambon Atvars,
期刊:
Spectroscopy Letters
(Taylor Available online 1990)
卷期:
Volume 23,
issue 5
页码: 627-636
ISSN:0038-7010
年代: 1990
DOI:10.1080/00387019008054444
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The absorption, excitation and fluorescence spectra of fluorescein in ethyl acetate and acetone were obtained. It was verified that the neutral lactonic form of fluorescein is present in dilute solutions of those organic solvents. However, in concentrated solutions it was observed a shift of the dissociation equilibrium to form the neutral zwitterionic form of the dye in both electronic ground and excited states.
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