2,4,5,7-Tetranitrofluorescein in solutions: novel type of tautomerism in hydroxyxanthene series as detected by various spectral methods

Stepwise dissociation and tautomerism of 2,4,5,7-tetranitrofluorescein (TNF) were studied by using vis-spectroscopy in dimethylsulfoxide (DMSO), in aqueous acetone, and in cetyl-trimethylammonium chloride (CTAC) micellar solutions at ionic strength of the bulk phase 4.00 M KCl. The p K a values in D...

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Veröffentlicht in:	Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Molecular and biomolecular spectroscopy, 2005-09, Vol.61 (11), p.2747-2760
Hauptverfasser:	Mchedlov-Petrossyan, Nikolay O., Vodolazkaya, Natalya A., Surov, Yuriy N., Samoylov, Denis V.
Format:	Artikel
Sprache:	eng
Schlagworte:	2,4,5,7-Tetranitrofluorescein Acetone Dimethyl Sulfoxide Fluorescein - chemistry Fluoresceins - chemistry Fluorescence Hydrogen-Ion Concentration Ions - chemistry Isomerism Lactonic anions Micellar media Micelles Molecular Structure Nitro Compounds - chemistry Organic solvents Protolytic equilibria Solutions - chemistry Spectrum Analysis Thermodynamics Vis- and IR-spectroscopy Xanthenes - chemistry
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