Direct, spectroscopic measurement of the rotational state distribution of HCl fragments from the vibrational predissociation of ngr;2=1 (HCl)2produced by stimulated Raman excitation

摘要

Stimulated Raman excitation of (HCl)2produces dimers with one quantum in the ngr;2Hndash;Cl stretch vibration. HCl fragments from predissociation of the dimers are detected by resonant multiphoton ionization (MPI). The HCl rotational state distribution shows a strong propensity to form the highest energetically accessible states.