Photolysis of Fluorine Molecules Trapped in Solid Methane at 15 K: Evidence of the Reaction of Vibrationally Excited CH3F Molecules with F2

Article abstract of DOI:10.1021/j100038a024

The kinetics of reactions initiated via F2 photolysis in solid methane at 15 K was studied with IR spectroscopy.CH3F...HF complexes, formed in a cage reaction with a quantum yield of 0.55 +/- 0.10, are the main products of the photolysis at a host:guest matrix ratio MIR > 5.At MIR < 100 the formation of CH2F2 is also detected.Its quantum yield grows linearly with F2 concentration in the MIR range 100-13.The formation of CH2F2 is suggested to be due to the reaction of the F2 molecule with a highly vibrationally excited primary product CH3F*, formed upon photolysis of the reactant clusters (F2*CH4*F2).