Laser Chemistry

Laser Chemistry / 1999 / Article
Special Issue

Proceedings of the Eighth Conference on Time-Resolved Vibrational Spectroscopy

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Open Access

Volume 19 |Article ID 57652 | 4 pages |

Picosecond Raman Excitation Profile and Transient Absorption Spectrum of S1 Quaterphenyl in Solution

Received28 Apr 1997


Intensity changes in Stokes resonance Raman spectra of photoexcited quaterphenyl are found to result from 17 ps timescale changes in resonance frequency and width and also in Franck-Condon displacements. The 766 cm-1 anti-Stokes band shows a significant hot population which decays on a similar timescale. The results show that population relaxation, vibronic coupling and solvent reorganisation are all significant on this timescale.

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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