Intersystem crossing in stilbene exciplexes

Frederick D Lewis*, J. Thomas Simpson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Intersystem crossing in several long-lived trans-stilbene singlet exciplexes is found to occur via oxygen-independent and oxygen-catalyzed pathways. Rate constants for oxygen-independent intersystem crossing are in the range 1-5 × 107 s-1. Intersystem crossing results in efficient population of the triplet state of trans-stilbene and inefficient population of the other exciplex partner. This result is in accord with Boltzmann controlled population of the two triplet species. The population of triplet species via recombination of solvated radical ions is highly inefficient even though population of triplet stilbene should be exothermic.

Original languageEnglish (US)
Pages (from-to)2015-2019
Number of pages5
JournalJournal of Physical Chemistry
Issue number15
StatePublished - Jan 1 1979

ASJC Scopus subject areas

  • General Engineering
  • Physical and Theoretical Chemistry


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