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Solvent and temperature effects on the excited singlet state absorption of diphenylbutadiene
S E Wallace-Williams1, S Møller, K M Hanson
1Department of Chemistry and Biochemistry, University of California, Santa Cruz 95064.
Photochemistry and Photobiology
|December 1, 1992
Abstract:
Nanosecond excited state absorption spectra of all-trans-1,4-diphenyl-1,3-butadiene (DPB) and a rigid s-cis DPB analog, 1,4-diphenyl-1,3-cyclopentadiene, were obtained in several hydrocarbon solvents at room temperature and low temperatures. Analysis of the excited state absorption spectra of these two molecules suggests the presence of excited state s-cis rotamers in DPB at room temperature.