Kinetics and mechanism of the reaction of acetonyl radical, CH3C(O)CH2, with Br2
2013
Abstract The low pressure fast discharge flow method with laser induced fluorescence detection of CH 3 C(O)CH 2 was employed to study the kinetics of the reaction CH 3 C ( O ) CH 2 + Br 2 → CH 3 C ( O ) CH 2 Br + Br (1) at 298, 323 and 365 K. The rate coefficient at room temperature is k 1 = (2.33 ± 0.04 (2 σ )) × 10 −12 cm 3 molecule −1 s −1 , which increases slightly with increasing temperature. Quantum chemistry (G2) and theoretical rate theory (conventional TST) computations have supplied results in qualitative agreement with experiment. The relatively slow rate of reaction (1) can be due to the resonance stabilization of the acetonyl radical.
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