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The ultrafast ground and excited state dynamics of cis-hexatriene in cyclohexane
dc.contributor.authorPullen, Stuart H.en_US
dc.contributor.authorAnderson, Neil A.en_US
dc.contributor.authorWalker, Larry A.en_US
dc.contributor.authorSension, Roseanne J.en_US
dc.date.accessioned2010-05-06T21:33:26Z
dc.date.available2010-05-06T21:33:26Z
dc.date.issued1997-10-01en_US
dc.identifier.citationPullen, Stuart H.; Anderson, Neil A.; Walker, Larry A.; Sension, Roseanne J. (1997). "The ultrafast ground and excited state dynamics of cis-hexatriene in cyclohexane." The Journal of Chemical Physics 107(13): 4985-4993. <http://hdl.handle.net/2027.42/70051>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/70051
dc.description.abstractOne- and two-color kinetics have been combined with broadband ultraviolet transient absorption spectroscopy in the 265–300 nm region to elucidate the photophysics of cis-hexatriene in cyclohexane solvent. The lowest singlet excited state, the 2 1A121A1 state, is observed to have a lifetime of 200±50 fs. The ground-state hexatriene is produced vibrationally hot. The excess vibrational energy permits ultrafast isomerization around the C–C single bonds in hexatriene. This results in a dynamic equilibrium of the three cis-hexatriene rotamers, which then relaxes multiexponentially to the room-temperature distribution in which the di-s-trans-Z-hexatriene form predominates. The peak of the mono-s-trans (cZt-HT) population is estimated to be ∼50%. Vibrational cooling results in trapping of a small amount, ∼8%, of cZt-HT that relaxes on a much longer time scale as the barrier to isomerization becomes important. An estimate of the absorption spectrum of cZt-HT is deduced from analysis of the spectral data at 50 ps. © 1997 American Institute of Physics.en_US
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dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleThe ultrafast ground and excited state dynamics of cis-hexatriene in cyclohexaneen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/70051/2/JCPSA6-107-13-4985-1.pdf
dc.identifier.doi10.1063/1.475129en_US
dc.identifier.sourceThe Journal of Chemical Physicsen_US
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dc.owningcollnamePhysics, Department of


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