Abstract
Rate constants are reported for the vibrational deactivation of the asymmetric stretching mode of N 2O in the gas phase over the temperature range 300-150 K. Experimental pressures varied between 10 and 600 Torr. The collision partners studied are N 2O itself, O 2, N 2 and CH 4. The measurements were made using the laser-induced fluorescence technique. N 2O was pumped directly to the N 2O (00 01) level by an HBr laser. This excitation technique has been used before for the study of the asymmetric stretching mode of CO 2, but this is the first time that it has been applied to N 2O.
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