THE STRUCTURE OF ELECTRONIC EXCITED STATES IN TRANS-STILBENE: PICOSECOND TRANSIENT STOKES AND ANTI-STOKES RAMAN SPECTRA
1985
We measured picosecond transient Stokes and anti‐Stokes Raman spectra of S1 trans‐stilbene in hexane. We observed 18 vibrational modes in the Stokes spectra and two modes in the low wave number anti‐Stokes spectra. The band positions and band shapes of the transient Raman spectra suggest a distribution of molecular conformers in S1 having different single and double bond strengths. The band intensities suggest a redistribution of electron density in Sn that is concentrated in the olefinic region and in the ortho and meta region of the phenyl rings.
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