
TY  - JOUR
A1  - Arthur, NL 
A1  - Newitt, PJ 
T1  - Hydrogen abstraction from (<sup>2</sup>H<sub>3</sub>)methyl acetate by methyl and trifluoromethyl radicals
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1981
VL  - 34
IS  - 4
SP  - 727
EP  - 735
KW  - 
UR  - https://doi.org/10.1071/CH9810727 
N2  - A study of hydrogen abstraction from CH3COOCD3 by CH3 radicals in the temperature range 113-232º, and by CF3 radicals in the range 83-212º, has yielded data on the reactions: CH3+CH3COOCD3 &#8594; CH4+CH2COOCD3         (1)CH3+CH3COOCD3 &#8594; CH3D+CH3COOCD2         (2) CF3+CH3COOCD3 &#8594; CF3H+CH2COOCD2        (3) CF3+CH3COOCD3 &#8594; CF3D+CH3COOCD2        (4) The corresponding rate constants, based on the values 1013.34 and 1013.36 cm3 mol-1 s-1 for the recombination of CH3 and CF3 radicals, respectively, are given by (k in cm3 mol-1 s-1 and E in J mol-1): logk1 = (11.31±0.12)-(43500±1030)/19.145T         (1) logk1 = (11.31±0.12)-(53460±640)/19.145t        (2) logk3 = (11.12±0.06)=(34260±450)/19.145T          (3) logk4 =(10.93±0.12)-(38650±900)/19.145T         (4)These results lead to kinetic isotope effects at 400 K for attack on the acetyl group of 11, for the CH3 reaction, and 24, for the CF3 reaction, thus confirming the values we obtained previously. For attack on the methoxy group, the kinetic isotope effects are 8 and 4, for the CH3 and CF3 reactions, respectively. 
ER  -

