Abstract
Ionization constants of fluorescein and six its derivatives in water micellar solutions of zwitterionic surfactant, N-cetyl-N,N-dimethyl-3-ammonium-1-propanesulfonate were evaluated spectrophotometrically. On the basis of absorption spectra of dyes conclusions concerning the tautomerism of molecular and ionic forms were made and the relationships between the pK a values were explained.
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Original Russian Text © N.A. Vodolazkaya, P.V. Shakhova, N.O. Mchedlov-Petrosyan, 2009, published in Zhurnal Obshchei Khimii, 2009, Vol. 79, No. 7, pp. 1081–1089.
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Vodolazkaya, N.A., Shakhova, P.V. & Mchedlov-Petrosyan, N.O. Acid-base and tautomeric equilibria of fluorescein dyes in water micellar solutions of zwitterionic sulfobetaine surfactant. Russ J Gen Chem 79, 1437–1445 (2009). https://doi.org/10.1134/S1070363209070068
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DOI: https://doi.org/10.1134/S1070363209070068