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Vibrational cooling kinetics of S 1 trans ‐stilbene in sodium dodecyl sulfate micellar solution observed with picosecond time‐resolved resonance Raman spectroscopy
Author(s) -
Iwata Koichi,
Hamaguchi Hiroo
Publication year - 1998
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199810/11)29:10/11<915::aid-jrs329>3.0.co;2-k
Subject(s) - chemistry , raman spectroscopy , solvation , picosecond , sodium dodecyl sulfate , kinetics , photochemistry , spectroscopy , dodecane , resonance raman spectroscopy , solvent , intermolecular force , analytical chemistry (journal) , molecule , organic chemistry , optics , laser , physics , quantum mechanics
Microscopic solvation environments and ultrafast intermolecularenergy transfer kinetics of trans ‐stilbene were studied in asodium dodecyl sulfate (SDS) micellar solution and in a dodecanesolution. The UV absorption spectrum showed no evidence of aggregateformation in the micellar solution. The agreement of the fluorescencelifetimes suggests that the microscopic environments in two solutionsare similar. Picosecond time‐resolved Raman spectroscopy showed thatthe vibrational cooling kinetics of S 1 trans ‐stilbene are faster in the SDS micellar solution than indodecane. These results are explained well by a simple model ofsolute–solvent energy transfer and solute vibrational coolingproposed earlier. Picosecond time‐resolved Raman spectroscopy can bean effective method in studying solvation structure and its dynamics.© 1998 John Wiley & Sons, Ltd.