Picosecond polarization spectroscopy as a probe of intramolecular dynamics: rovibronic relaxation in the S1 state of trans-stilbene

✍ Scribed by A.J. Bain; P.J. McCarthy; R.M. Hochstrasser

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 637 KB
• Volume: 125
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(86)85162-4

✦ Synopsis

The first application of picosecond polarization spectroscopy to probe gas phase intramolecular relaxation under collision free conditions is reported. This technique is a sensitive probe of molecular rotation and when applied to trans-stilbene vapor at 2OO'C an exponential decay in the anisotropy with a lifetime of 48 f 8 ps is observed. The results are discussed in the context of recent work on IVR and rovibrational intramolecular processes.