Radiationless decay of 1,3,5,7-octatetraene

John Richard Ackerman, Bryan E. Kohler, D. Huppert, P. M. Rentzepis

Research output: Contribution to journalArticlepeer-review


The decay kinetics of the 2 1Ag state of the linear polyene 1,3,5,7-octatetraene in hydrocarbon solutions have been measured by nanosecond and picosecond techniques from 10 to 320 K. The observed decrease in emission lifetime with increasing temperature is well described in terms of a temperature activated intramolecular radiationless decay process proceeding over a ∼4 kcal Arrhenius barrier. This barrier is not significantly affected by intermolecular interactions such as sample viscosity or phase and may be related to rotation about essential single bonds in the excited state.

Original languageEnglish
Pages (from-to)3967-3973
Number of pages7
JournalThe Journal of Chemical Physics
Issue number8
StatePublished - 1982


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