Picosecond Raman excitation profile and transient absorption spectrum of S-1 quaterphenyl in solution

Authors
Toner, WT Matousek, P Parker, AW Towrie, M
Citation
Wt. Toner et al., Picosecond Raman excitation profile and transient absorption spectrum of S-1 quaterphenyl in solution, LASER CHEM, 19(1-4), 1999, pp. 79-82
Citations number
2
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LASER CHEMISTRY
ISSN journal
02786273 → ACNP
Volume
19
Issue
1-4
Year of publication
1999
Pages
79 - 82
Database
ISI
SICI code
0278-6273(1999)19:1-4<79:PREPAT>2.0.ZU;2-#
Abstract
Intensity changes in Stokes resonance Raman spectra of photoexcited quaterp henyl are found to result from 17ps timescale changes in resonance frequenc y and width and also in Franck-Condon displacements. Thr 766cm(-1) anti-Sto kes band shows a significant hot population which decays on a similar times cale. The results show that population relaxation, vibronic coupling and so lvent reorganisation are all significant on this timescale.