Solvent effect on the formation and proton transfer equilibria in the 2,4,6-trichlorophenol-triethylamine system

Authors
Kuc, T Zeegers-Huyskens, T Pawelka, Z
Citation
T. Kuc et al., Solvent effect on the formation and proton transfer equilibria in the 2,4,6-trichlorophenol-triethylamine system, J MOL LIQ, 89(1-3), 2000, pp. 147-158
Citations number
35
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR LIQUIDS
ISSN journal
01677322 → ACNP
Volume
89
Issue
1-3
Year of publication
2000
Pages
147 - 158
Database
ISI
SICI code
0167-7322(200012)89:1-3<147:SEOTFA>2.0.ZU;2-A
Abstract
The formation constants and dipole moments of hydrogen-bonded complexes of 1:1 and 2:1 stoichiometry formed between 2,4,6-trichlorophenol and triethyl amine are determined in various solvents. The solvent effect on formation a nd proton transfer equilibria is discussed in terms of continuum dielectric models and the Swain et al acidity (A) parameter of the solvent. The coope rative hydrogen-bonding effects of the second phenol molecule and the hydro gen-donating (electron-accepting) effect of the solvent molecules are demon strated. (C) 2000 Elsevier Science B.V. All rights reserved.