Femtosecond infrared coherent excitation of liquid phase vibrational population distributions (v>5)
Autor: | Jake S. Yeston, Thomas Witte, Marcus Motzkus, Edwin J. Heilweil, Karl-Ludwig Kompa |
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Rok vydání: | 2004 |
Předmět: | |
Zdroj: | Chemical Physics Letters. 392:156-161 |
ISSN: | 0009-2614 |
DOI: | 10.1016/j.cplett.2004.05.052 |
Popis: | Femtosecond mid-infrared excitation of room temperature W(CO) 6 / n -hexane solutions resonant with the T 1u CO-stretching mode transfers vibrational population to at least v =6. The population distribution in levels v =0 to v =5 was measured by transient infrared absorption spectroscopy. Resonance frequencies, anharmonic shifts and spectral broadening of observed ladder transitions were also characterized. Populating v =6 deposits ∼12 000 cm −1 in a single mode which is close to the dissociation energy of one W–C bond. These results constitute a significant step toward initiation and ultimate control of condensed phase, mid-infrared induced ground state reactions relevant to practical synthetic transformations. |
Databáze: | OpenAIRE |
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