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          Institute: MPI für Quantenoptik     Collection: Laser Chemistry     Display Documents



ID: 19882.0, MPI für Quantenoptik / Laser Chemistry
Molecular dissociation by mid-IR femtosecond pulses
Authors:Windhorn, Lars; Witte, Thomas; Yeston, Jake S.; Proch, Detlev; Motzkus, Marcus; Kompa, Karl-Ludwig; Fuß, Werner
Language:English
Date of Publication (YYYY-MM-DD):2002-05-01
Title of Journal:Chemical Physics Letters
Journal Abbrev.:Chem. Phys. Lett.
Volume:357
Issue / Number:1-2
Start Page:85
End Page:90
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:By focusing a MIR femtosecond laser in a cell containing gas- phase metal carbonyls, the resonant infrared multiphoton dissociation of molecules was observed, Cr(CO)6, Mo(CO)6,W(CO)6, and Fe(CO)5 could easily be dissociated, which requires an excitation to at least v = 7 or 8 of the CO stretch vibration. After irradiation with ~150 fs pulses at 5 µm the metal carbonyl practically disappears in favor of free CO, as detected by the IR spectrum. By comparing the power dependence of the total conversion with a model, we can infer that only few vibrational degrees of freedom are involved in the excitation process. (C) 2002 Published by Elsevier Science B.V.
External Publication Status:published
Document Type:Article
Communicated by:K.-L. Kompa
Affiliations:MPI für Quantenoptik/Laser Chemistry
Identifiers:ISI:000175958500014
ISSN:0009-2614
URL:http://www.sciencedirect.com/science/article/B6TFN...
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