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Proceedings Paper

Role Of Hot Molecule In UV Single-And Multiphoton Decomposition
Author(s): Nobuaki Nakashima; Noriaki Ikeda; Keitaro Yoshihara
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Paper Abstract

The UV photochemistry of olefins and alkylbenzenes is described from a new point of view: the hot molecule mechanism. The hot molecule (denoted as is is formed by internal conversion to the ground state in the gas phase on irradiation with ArF laser light (193.2 nm). For the first time, dissociation rate constants for the hot molecule mechanism have been measured. The hot molecule (S0**) has an another role. It can be an intermediate in UV multiphoton dissociation. S0** shows strong absorption in the UV region and hence efficiently absorbs a second photon which causes dissociation. Radical fragmentations are major reactions of this new multiphoton chemistry.

Paper Details

Date Published: 18 May 1989
PDF: 16 pages
Proc. SPIE 1033, Trends in Quantum Electronics, (18 May 1989); doi: 10.1117/12.950653
Show Author Affiliations
Nobuaki Nakashima, Osaka University (Japan)
Noriaki Ikeda, Osaka University (Japan)
Keitaro Yoshihara, Institute for Molecular Science (Japan)

Published in SPIE Proceedings Vol. 1033:
Trends in Quantum Electronics
Ioan Ursu, Editor(s)

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