Multiphoton Chemistry of Perfluoropropene

Article abstract of DOI:10.1021/j100445a030

The multiphoton decomposition of perfluoropropene (C3F6) has been studied with parallel and focused beams of selected radiation from a CO2 laser.The predominant product for both geometries is C2F4, supporting the mechanism: C3F6 + nhν -> C2F4 + CF2; CF2 + CF2 -> C2F4.NO, 2,3-dimethylbutene, and 2,3-dimethylbutane have little effect on the decomposition whereas O2 changes both the yield and the nature of the products.Photolysis with parallel beams of 995- and 1004.3-cm⁺¹ radiation gives highly selective decomposition of CF2¹³CFCF3 over CF2¹²CFCF3.The probabilities of decomposition, ¹³P_d, for ¹²P_d, for these two lines are reported as a function of initial C3F6 pressure from 0.2 to 10 torr.