Concerning the Participation of the Anthracene/N,N- Dimethylaniline Exciplex in Anthracene Photodimerization

Jack Saltiel, David E. Townsend, Brant D. Watson, Patrick Shannon, Stephen L. Finson

Research output: Contribution to journalArticle

63 Scopus citations

Abstract

Steady-state and transient fluorescence measurements have been made using mixtures of anthracene and N,N-dimethylaniline in benzene. These measurements show that the exciplex lifetime is shortened as the N,N-dimethylaniline concentration is increased, possibly due to the formation of a triplex. The exciplex lifetime is independent of anthracene concentration for [A] ≤ 0.03 M, but decreases at high anthracene concentration. A study of anthracene photodimerization suggests that the exciplex or a higher excited aggregate participates in this reaction at high anthracene concentration and that the presence of oxygen enhances dianthracene yields. Rate constants for several of the photophysical and photochemical processes are reported.

Original languageEnglish (US)
Pages (from-to)884-896
Number of pages13
JournalJournal of the American Chemical Society
Volume99
Issue number3
DOIs
StatePublished - Jan 1 1977

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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