Table of Contents
Laser Chemistry
Volume 11, Issue 3-4, Pages 163-167

Kinetic and Spectroscopic Studies of Transient Species Prepared by Irmpd

Departmento de Química Física., Fac. Ciencias., Universidad Pais Vasco, Apart. 644, Bilbao 48080, Spain

Copyright © 1991 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.


Infrared multiple photon absorption is known to be observed in some triatomic and most polyatomic molecules. When the number of absorbed photons is high enough the process leads to photodissociation and excess energy is released as vibrational, rotational and translational energy in the electronic ground state of the fragments. The contribution of these energies is determined by standard methods, that include laser induced fluorescence, LIF, and time-resolved Fourier transform spectroscopy, TR-FTS. Examples of selected determinations are shown.

Once produced, identified and characterized, the kinetic behaviour of the transients with selected reactants can be studied. In particular, removal rate constants of substituted carbenes, in specific vibrational and electronic states, by atoms, olefins and simple molecules are mentioned.