Theoretical study of kinetic hydrogen isotope effect in proton-transfer reactions between ethyl nitroacetate and bases

1978 ◽  
Vol 27 (4) ◽  
pp. 833-835
Author(s):  
�. D. German
Keyword(s):  
Proton Transfer ◽  
Isotope Effect ◽  
Hydrogen Isotope ◽  
Theoretical Study ◽  
Transfer Reactions ◽  
Proton Transfer Reactions ◽  
Ethyl Nitroacetate ◽  
Hydrogen Isotope Effect

Kinetic hydrogen isotope effects in the ionization of some nitroparaffins

1966 ◽  
Vol 294 (1438) ◽  
pp. 273-297 ◽  
Keyword(s):  
Proton Transfer ◽  
Isotope Effect ◽  
Hydrogen Isotope ◽  
Isotope Effects ◽  
Transfer Reactions ◽  
Acid Base ◽  
Maximum Value ◽  
Proton Transfers ◽  
Theoretical Predictions ◽  
Proton Transfer Reactions

Values are reported for the kinetic hydrogen isotope effects for proton-transfer reactions between hydroxide ions and nitromethane, nitroethane, nitrocyclohexane and 2-nitropropane, and between 2-nitropropane and pyridine, 2, 6-lutidine and acetate ions. In conjunction with earlier work the results suggest that the isotope effect has a maximum value for proton transfers between two acid-base systems of approximately equal p K , in agreement with theoretical predictions. We have confirmed that the abstraction of a proton from 2-nitropropane by 2, 6-lutidine exhibits an abnormally high isotope effect ( k H / k D = 20), probably attributable to a considerable tunnelling correction.

Theoretical Study on Thermodynamic Hydrogen Isotope Effect of VQ2 (Q=H, D and T)

2010 ◽  
Vol 39 (2) ◽  
pp. 204-208
Author(s):  
Lei Qianghua ◽  
Chen Chang'an ◽  
Huang Li ◽  
Zhang Yongbin
Keyword(s):  
Isotope Effect ◽  
Hydrogen Isotope ◽  
Theoretical Study ◽  
Hydrogen Isotope Effect
Sign in / Sign up

Export Citation Format

Share Document