Protolytic equilibrium of phenol in the ground and excited electronic states in aqueous solution

Authors
Chaikovskaya, ON Kuznetsova, RT Sokolova, IV Sul'timova, NB
Citation
On. Chaikovskaya et al., Protolytic equilibrium of phenol in the ground and excited electronic states in aqueous solution, RUSS J PH C, 74(10), 2000, pp. 1640-1643
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
74
Issue
10
Year of publication
2000
Pages
1640 - 1643
Database
ISI
SICI code
0036-0244(200010)74:10<1640:PEOPIT>2.0.ZU;2-#
Abstract
The spectral characteristics of various phenol forms (neutral, anionic, and cationic) in water were studied by the absorption and fluorescence methods . Phenol pK(a) acidity and basicity values were determined in the ground an d excited states, and the pK(a)* values for the first excited nonequilibriu m Franck-Condon state were calculated. It has been shown that, at medium pH values 4-9, phenol in water can exist in the neutral, anionic, and cationi c excited forms.