Abstract

The abstraction reaction between fluorine atoms and various olefinic and aromatic substrates has been examined by the arrested relaxation infrared chemiluminescence technique. The relative populations of each rotational–vibrational quantum state of the HF produced in such reactions have been obtained. The fraction of reaction exothermicity entering HF vibration, as well as the relative total cross sections for the substitution and abstraction reactions have been estimated. The results indicate that, typically, about 40% of the exothermicity enters HF vibration, with the HF V=1 state the most likely to be populated, followed by V=2 and V=3.

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