INFRARED-EMISSION FROM THE REACTION OF CHF ((X)OVER-TILDE-(1)A') WITHNO

Infrared emission has been observed from the reaction of the CHF ((X) over tilde(1)A') radical with NO (X(2) Pi). The carbene radical was fo rmed by infrared multiphoton dissociation (IRMPD) of either the CH2FCl or the CH2F2 precursor, and emission in the 1850-4500-cm(-1) region w as observed by a time-resolved Fourier transform infrared (FTIR) techn ique. Emissions have been identified from the HF product of the reacti on and from Species produced by the subsequent reaction of the NCO rad ical product with NO. The HF was found to possess more than a statisti cal share of the available energy in vibration. Addition of D-2 to the system results in DF formed from the reaction of F atoms, and compari son of the HF/DF emission intensities has allowed the relative branchi ng ratio of the CHF + NO reaction forming HF and F products to be 0.6 +/- 0.04:0.4 +/- 0.03.