Electronic quenching and vibrational relaxation of the OH (<i>A</i> 2Σ+, <i>v</i>′=1) state

Abstract

Rate constants for electronic quenching and vibrational relaxation of the v′=1 manifold of (A 2Σ+) OH by Ar, H2, N2, and He have been obtained by a laser fluorescence method. The quenching rate constants for v′=1 are not appreciably different from those which have been measured for v′=0. The relaxation rate constants are a factor of 3 larger than the quenching rate constants for Ar and H2, and 5 times larger for nitrogen. (AIP)