Intersystem crossing in glyoxal vapor. An experimental study of both the resonant and statistical limit
✍ Scribed by L.G. Anderson; C.S. Parmenter; H.M. Poland; J.D. Rau
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 410 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
We des'cribe results from a continuing study of excited state rel&~aticn processes in @yo~~lr @XiCXXO~ Chat demcmsQat$ the reSonZnt or small mobx& limit of a nonradiat&ve transitfon. fntersystem crossing from the excited singlet (I&) state to a triplet state (presumably the %u state) is shown to be collisionall_v induced. aed thus glyoxal provides an example beyond the realm of triatomics where the re~alfant limit predicted by theory is clearly dismayed. On ths other hand, the data show that intersystem crossing from the tripl& tcr the ~ouad state, il present, is intramolecular. This is consistent with predictions that this transition lies in the statistical limit.
Emission from both the singlet (IA,) and the triplet (3Au) state of glyoxai has been induced by 'excitation of the 1Au state with 4358 A . radiation fro&~ a 'low pressure Wg aret. The * Coaklbutian No. X883 from.the Chemical Labora-'tories of Indiana Ifnlversity, -** Present address: S. f, L, Ai, University of Cdoiado. Boulder; Colorada 80302. USA. that this ekciting: line pu&ps .a +l&attto& level . -I.. that lies about lio0 &i-l above the zero p&at .ievel of tfre Q&sfste og @pxziL -. -1