Infrared Multiphoton Decomposition of Hexafluorobenzene Investigated by Diode Laser Kinetic Spectroscopy: Detection of CF and CF2

Article abstract of DOI:10.1021/j100346a053

Infrared multiphoton decomposition of hexafluorobenzene (C6F6) was investigated by diode laser kinetic spectroscopy.Two transient species, CF and CF2, were detected, and the time evolution of their signals was observed.The signal of CF rose within 10 μs after a CO2 laser pulse and decreased with lifetime of about 200 μs, while that of CF2 rose slowly as CF decayed out.Final products observed by an FTIR spectrometer were mostly C2F4 and C6F5CF3.These experimental results suggested that CF was produced at the early stage of the reaction and that CF2 was produced by the reaction of CF with a certain fluorine-containing species and then decayedout through the dimerization and/or the reaction with C6F6.