Kinetic isotope effects in the reaction of methyl radicals with molecular hydrogen

1972 ◽  
Vol 76 (12) ◽  
pp. 1669-1679 ◽  
Author(s):  
J. S. Shapiro ◽  
R. E. Weston
Keyword(s):  
Molecular Hydrogen ◽  
Isotope Effects ◽  
Kinetic Isotope Effects ◽  
Methyl Radicals ◽  
Kinetic Isotope

Elimination of Molecular Hydrogen and Methane from Collision-Activated Alkoxide Negative Ions in the gas Phase. An ab initio and Isotope Effect Study

1985 ◽  
Vol 38 (8) ◽  
pp. 1197 ◽  
Author(s):  
RN Hayes ◽  
JC Sheldon ◽  
JH Bowie ◽  
DE Lewis
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Gas Phase ◽  
Molecular Hydrogen ◽  
Isotope Effects ◽  
Negative Ions ◽  
Kinetic Isotope Effects ◽  
Effect Study ◽  
Negative Ion ◽  
Kinetic Isotope

Ab initio calculations indicate that the collisional induced losses of molecular hydrogen from the ethoxide negative ion and methane from the t- butoxide negative ion to be stepwise processes in which the key intermediates are [H-… MeCHO ] and [Me-…Me2CO] respectively. Deuterium kinetic isotope effects observed for these and other alkoxide negative ions are in accord with the operation of a stepwise reaction.

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