Relaxation of HCl in Liquid Xenon Solution by Vibration-Vibration Energy Transfer.

摘要

The deactivation of vibrationally excited HCl produced via excimer laser photolysis of chloroethylenes has been studied in both the gas phase and in liquid xenon solution. The rate of deactivation of HCl* by the chloroethylene parent is significantly faster in liquid xenon than in the gas phase. This occurs due to enhancement of the vibration-vibration energy transfer probability in solution. The nature of this enhancement is discussed. The intercept of the line corresponding to deactivation rate versus parent pressure is larger than HCl* is produced from chloroethylenes than when produced via the H + Cl + M recombination reaction. The cause of this effect is also considered.