ChemInform Abstract: A STUDY OF THE PROTON TRANSFER OF CHLORO-SUBSTITUTED BENZOIC ACIDS IN WATER-DIMETHYL SULFOXIDE MIXTURES COMPARED WITH THE SAME PROCESS INTHE GASEOUS PHASE

1982 ◽  
Vol 13 (18) ◽  
Author(s):  
M. G. BONICELLI ◽  
G. CECCARONI ◽  
F. RODANTE
Keyword(s):  
Proton Transfer ◽  
Dimethyl Sulfoxide ◽  
Gaseous Phase ◽  
Benzoic Acids ◽  
Substituted Benzoic Acids

Solvent Effect on the Hammett Reaction Constant of Substituted Benzoic Acids

1993 ◽  
Vol 46 (1) ◽  
pp. 31 ◽  
Author(s):  
H Bartnicka ◽  
I Bojanowska ◽  
MK Kalinowski
Keyword(s):  
Solvent Effect ◽  
Dimethyl Sulfoxide ◽  
Dissociation Constants ◽  
Benzoic Acids ◽  
Hammett Equation ◽  
P Values ◽  
Reaction Constant ◽  
Substituted Benzoic Acids ◽  
Reaction Constants ◽  
Solvent Acidity

Potentiometric titration has been used to measure dissociation constants of 13 monosubstituted benzoic acids in nitromethane, benzonitrile , acetonitrile , propylene carbonate, acetone, N,N-dimethylformamide, dimethyl sulfoxide, methanol and formamide. The reaction constants of the Hammett equation were found to depend on the solvent acidity and basicity expressed by the α and β parameters of Kamlet and Taft. The p values determined earlier in water and ethanol also obey this rule.

Sign in / Sign up

Export Citation Format

Share Document