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Direct picosecond time resolution of dissipative intramolecular vibrational-energy redistribution (IVR) in isolated molecules

✍ Scribed by Peter M. Felker; Ahmed H. Zewail

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 668 KB
Volume: 108
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)85196-9

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✦ Synopsis

Direct picosecond time resolution of dissipative IVR is reported for the first time. For jet-cooled anthracene with Eeb = 1791 cm -*_ rhc urm%-zxed fluorescence displays ;t fast decay of ==75 ps_ while the reLaxed fluorescence displays a corrc spondin!: rise. The onset for dissipative IVR is related to the effective density of states and coupling matrix elements. and reflects the importance of time-resolved measurements. l_ introduction * IBM I'rcdoctoral IWlow.

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Threshold energy dependence of intramole

Threshold energy dependence of intramolecular vibrational redistribution (IVR) rates of isolated polyatomic molecules

✍ M.V. Kuzmin; A.A. Stuchebrukhov 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 403 KB

A thermodynamic Green's function technique is successfully applied to the calculation of IVR rates of polyatonfic molecul, The energy dependence of IVR rates has interesting threshold features: rates are zero below some critical energy Ec, aJ non-zero for higher energies. This dependence can be unde