Solvent and temperature effects on the excited singlet state absorption of diphenylbutadiene.
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.
Wallace-Williams
S E
SE
Department of Chemistry and Biochemistry, University of California, Santa Cruz 95064.
Møller
S
S
Hanson
K M
KM
Goldbeck
R A
RA
Kliger
D S
DS
Yee
W A
WA
D002070:Butadienes / Q000737:chemistry* / Q000528:radiation effects; D010777:Photochemistry; D012997:Solvents; D013053:Spectrophotometry; D013237:Stereoisomerism; D013696:Temperature
D002070:Butadienes; D012997:Solvents; C012939:1,4-diphenylbutadiene