Table of Contents
Laser Chemistry
Volume 2, Issue 5-6, Pages 229-241

The Spectroscopy of Transition States in H+H2 Reaction, and NaI Photodissociation

Department of Chemistry, University of Toronto, Toronto M5S 1A1, Canada

Copyright © 1983 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


(a). We have computed an approximate absorption spectrum for unstable intermediates H3 which constitute the transition states in the fundamental exchange reaction H+H2H3H2+H. Reaction takes place across the Siegbahn, Liu, Truhlar, Horowitz (SLTH) ground state energy surface, and electronic excitation is to the bound state that correlates with H*(22P)+H2. Features in the spectrum are indicative of the favored turning points for the mean of many classical trajectories across the SLTH surface. (b). Preliminary experimental data are reported which give evidence of emission arising from the transition states of NaI* in the (cw or pulsed) photolysis of NaI222nmNaI*Na*(32P)+I. The observed transition state emission is compared with a simple calculation.