Quenching of I(2P½) by R-OH compounds. Influence of the alkyl group on the quenching efficiency

✍ Scribed by Malisa S. Chiappero; Raúl G. Badini; Gustavo A. Argüello

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 113 KB
• Volume: 29
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/(sici)1097-4601(1997)29:3<155::aid-kin1>3.0.co;2-t

✦ Synopsis

I* emission. These have been extended to many systems to understand the mechanism involved in energy transfer processes. This problem has been tackled using several approaches: (a) Direct measurement of state-to-state E-v rate constants; (b) Temperature dependence of the bulk or overall quenching rate constants; (c) Isotope effects on the observed quenching rate constants; and (d) study of the quenching efficiencies of a "family" of compounds.

Although the first approach is the most satisfactory and direct, only in few cases is it experimentally achievable. Few systems (HF, H 2 , and H 2 O) [5-8] have been studied directly (case a) because of the complexity added by the acceptor intramolecular energy redistribution which grows with the number of vibrational degrees of freedom. Based on the kinetic analysis of the system, state-to-state energy transfer studies are limited up to triatomic acceptor molecules.