Double Proton Transfer Reactions with Plateau-Like Transition State Regions:  Pyrazole−Trifluoroacetic Acid Clusters

2006 ◽  
Vol 110 (8) ◽  
pp. 2816-2820 ◽  
Author(s):  
Stefan Schweiger ◽  
Guntram Rauhut
Keyword(s):  
Proton Transfer ◽  
Transition State ◽  
Trifluoroacetic Acid ◽  
Transfer Reactions ◽  
Double Proton Transfer ◽  
Proton Transfer Reactions

On photoinduced double-proton transfer reactions: the photophysics of the 9H-imidazo[1,2-a]benzimidazole dimer

2004 ◽  
Vol 305 (1-3) ◽  
pp. 175-185 ◽  
Author(s):  
J. Catalán ◽  
J.L.G. de Paz ◽  
J.C. del Valle ◽  
R.M. Claramunt ◽  
Th. Mas
Keyword(s):  
Proton Transfer ◽  
Transfer Reactions ◽  
Double Proton Transfer ◽  
Proton Transfer Reactions

Kinetics of Proton Transfer Reactions of Carbon Acids. II. Reaction of Di-(4-nitrophenyl)methane with Alkoxide Bases

1972 ◽  
Vol 50 (1) ◽  
pp. 24-30 ◽  
Author(s):  
A. Jarczewski ◽  
K. T. Leffek
Keyword(s):  
Proton Transfer ◽  
Transition State ◽  
Rate Constants ◽  
Activation Parameters ◽  
Transfer Reactions ◽  
Activation Process ◽  
Proton Transfers ◽  
Proton Transfer Reactions ◽  
Carbon Acids ◽  
Kinetics Of

The second-order rate constants have been measured over a range of temperatures for the proton-transter reactions from di-(4-nitrophenyl)methane to ethoxide, isopropoxide, and t-butoxide ions in solvents consisting of the corresponding alcohols containing 10% toluene by volume. The activation parameters ΔH≠ and ΔS≠ have been calculated and an interpretation of them is given in terms of solvation effects during the activation process. A comparison between the activation parameters for proton transfers and E2 olefin-forming β-elimination reactions is made and discussed with respect to transition state character of the latter reactions.

Sign in / Sign up

Export Citation Format

Share Document