Propensities for rotational energy transfer in theBthinsp;3Pgr;g(v=3) state of nitrogen

摘要

A two laser, double resonance technique is used to determine propensities for collision induced rotational energy transfer by Ar atoms in the N2Bthinsp;3Pgr;g(v=3) state. The results show thate/fparity conservation is much more rigorous for the lowJvalues of the3Pgr;0component as compared to the3Pgr;1or3Pgr;2rotational manifolds. These results are in good agreement with the prediction of Alexander and Pouilly lsqb;J. Chem. Phys.79, 1545 (1983)rsqb;. The breakdown ofe/fparity conservation for the relatively low value ofJ=7 in the OHgr;=0 manifold and collisional transfers from this level to the OHgr;=1 and 2 spin components are discussed in terms of the effects of spin uncoupling from the internuclear axis. There does not appear to be any obvious propensity forJspecificity in the collision induced transfer between any two of the three rotational manifolds separated by the spinhyphen;orbit interaction.