Direct observation of roaming radicals in the thermal decomposition of acetaldehyde.

  title={Direct observation of roaming radicals in the thermal decomposition of acetaldehyde.},
  author={R. Sivaramakrishnan and Joe V. Michael and Stephen J Klippenstein},
  journal={The journal of physical chemistry. A},
  volume={114 2},
The thermal dissociation of acetaldehyde has been studied with the reflected shock tube technique using H(D)-atom atomic resonance absorption spectrometry detection. The use of an unreversed light source yields extraordinarily sensitive H atom detection. As a result, we are able to measure both the total decomposition rate and the branching to radical versus molecular channels. This branching provides a direct measure of the contribution from the roaming radical mechanism since the… CONTINUE READING
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