The Formation of Trifluoromethyl Radicals in the Gas Phase

Trifluoromethyl radicals were produced by the reaction between atomic sodium and iodo-, bromo-, and chloro-trifluoromethane in the diffusion flame apparatus. The results indicate that:(1). The primary reaction is CF3X + Na → NaX + CF3.(2). For the reaction between sodium and iodo-, bromo-, and chloro-trifluoromethane, the activation energy is 1.7, 2.3, and 7.4 kcal. per mole, respectively.(3). Some decomposition of trifluoromethyl radicals occurs, yielding chiefly tetrafluoroethylene.(4). Reaction occurs between molecular hydrogen and trifluoromethyl radicals yielding fluoroform.