Journal of Chemical Physics, Vol.107, No.12, 4522-4526, 1997
Collisional removal of NO (B-2 Pi, v=2 and 3) at 230 K
Removal rate coefficients for NO(B (II)-I-2) in the v = 2 and 3 levels are measured at 230 K for seven colliders: NO, N2O, CO2, O-2, N-2, Ar, and He. These measurements are the first below room temperature and are compared to earlier 295 K measurements. These NO(B (II)-I-2) vibrational levels differ from each other ii that the v = 2 level is unperturbed, and the v = 3 level is significantly perturbed by the v = 12 level of the a (II)-I-4 state, Although there are large variations in removal rate coefficients between the two B (II)-I-2 vibrational levels, the effect of reducing the temperature on the removal rate coefficients is modest, the largest effects occurring with the least effective colliders, He and Ar. (C) 1997 American Institute of Physics.