FAST REACTION RATES IN IR-PHOTOCHEMISTRY: c-C4F8 yields 2C2F4.

Article abstract of DOI:10.1002/bbpc.19820860606

Quantitative experimental results are reported for the photo-decomposition of octafluorocyclobutane under irradiation with intense, monochromatic light from a pulsed TEA-CO//2-laser in the range of the v//2//1 fundamental near 963 cm** minus **1. It is shown that the intensity dependence is linear to a good approximation by comparing irradiation with intense self-mode-locked pulse trains and smooth single mode pulses of low peak intensity, generated by means of an intracavity absorber. Results on the frequency dependence and upon the influence of inert gas pressure in the IR-photochemistry of C//4F//8 are reported. The experimental results are found to compare well with theoretical predictions based on a Pauli equation treatment and simple models for the rate coefficient matrix.