A BOXCARS investigation of the interspecies V-V energy transfer from highly excited SF6 to N2O: excitation of ν1 and ν3 modes of N2O

Abstract

The BOXCARS technique has been used to investigate the vibrational energy transfer between highly excited SF6 and N2O. It was found that the apparent rate and the amount of energy transferred to the ν1 (1285.0 cm−1) and ν3 (2223.5 cm−1) modes of N2O strongly depend on the excitation energy. The amount of energy transferred to the ν1 mode is slightly larger than that transferred to the ν3 mode, while the rate of energy transfer to the ν1 mode is slightly less than that to the ν3 mode. The rates and the amounts of energy transferred to both the ν1 and ν3 modes show greater dependence on the partial pressure of SF6 than on the partial pressure of N2O. A model has been proposed to explain the observed results.