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Direct pump/probe spectroscopy of the near-IR band of the solvated electron in alcohols

✍ Scribed by Peter K. Walhout; Joseph C. Alfano; Yoshifumi Kimura; Carlos Silva; Philip J. Reid; Paul F. Barbara

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 474 KB
Volume: 232
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01314-l

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✦ Synopsis

We report femtosecond direct pump/probe data on the s-state to p-state transition of the solvated electron in alcohols. The data reveal a p-state lifetime of ~0.5 ps and a large spectral component due to displacement along the ground-state solvent coordinate involving slow diffusive solvent motions and subsequent relaxation. The large displacement is surprising considering the short excited-state lifetime and the long relaxation times of these modes. This effect is apparently the result of a previously unknown p-state to s-state nonadiabatic rearrangement of the solvent coordinate of solvated electrons in alcohols.

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