Effective Temperature Variations in IR Laser Induced Chemical Reactions. The Decomposition of Cyclobutane

Article abstract of DOI:10.1021/j150604a006

A phenomenological model consistent with experimental studies of multichannnel systems in the collisional regime is proposed.In particular the importance of "temperature" variation resultant from laser excitation with respect to the rationalization of the pressure dependence of both product yields and product ratios is discussed.An approach is outlined for estimating the "effective temperature" which influences the rate of collision-induced transitions.It is pointed out, with cyclobutanone as the main example, how the experimental results are quite dependent on the laser powers used and how careful absorption measurements are requied before a system can be modeled in a meaningful fashion.