NDLI: Unraveling molecular vibrational energy pathways by laser diagnostics and computer simulations

Content Provider	IEEE Xplore Digital Library
Author	Kandratsenka, A.V. Schwarzer, D. Schroeder, J. Vikhrenko, V.S.
Copyright Year	2005
Description	Author affiliation: Belarussian State Technol. Univ., Minsk, Belarus (Kandratsenka, A.V.; Schwarzer, D.; Schroeder, J.; Vikhrenko, V.S.)
Abstract	Chemical reactions occur due to energy accumulation in specific vibrational intramolecular degrees of freedom (dofs). Thus, vibrational energy redistribution among different dofs inside a molecule as well as intermolecular vibrational energy transfer to external dofs is of particular importance for chemical reactions. In many cases these processes take place on a picosecond time scale such that short pulse lasers may be used to excite vibrations and analyze microscopic vibrational processes in a media. The process of photodissociation of organic peroxides carbon dioxide is formed with a broad vibrational energy distribution disposed mainly in the bend and symmetric stretch vibrational degrees of freedom. The highest frequency asymmetric stretch mode seems to remain unexcited because in all the solvents its vibrational relaxation is very slow. Comparatively fast vibrational cooling of CO/sub 2/ is insured by the Fermi resonance between the bend and symmetric stretch vibrations and proceeds through V-V near resonant energy transfer to solvent molecules.
Sponsorship	IEEE/LEOS Chapter, Ukraine Union Radio-Scietifique Internationale, URSI Comm. "D" IEEE AP/MTT/ED/AES/GRS/NPS/ EMB East Ukraine Joint Chapter European Office of Aerosp. Res. and Dev., AFOSR, AFRL US Army Int. Center - Atlantic, European Res. Office Office of Naval Res. Global
Starting Page	292
Ending Page	293
File Size	227422
Page Count	2
File Format	PDF
ISBN	0780391306
DOI	10.1109/CAOL.2005.1553886
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-12
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solvents Computer simulation Energy exchange Microscopy Carbon dioxide Laser modes Chemical lasers Resonance Laser excitation Optical pulses
Content Type	Text
Resource Type	Article

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