Vibrational relaxation and radiative rates of ozone

Collisional relaxation of the coupled ν 3 , ν 1 stretching modes of O 3 at 90 K has been investigated by monitoring time and pressure variations of the infrared emission at 9.6 μm. Spectral modeling was utilized to determine the temporal variations in the populations of each vibrational level. A single quantum collisional relaxation model was used to evaluate total decay rates out of each vibrational level in this highly coupled system. Total decay rates at several different pressures were subjected to a Stern-Volmer analysis and have yielded level specific rate coefficients for collisional quenching of 03 with up to three vibrational quanta