論文

査読有り
1992年11月

INFRARED MULTIPHOTON DISSOCIATION OF CCLF2CH2CL BY RELATIVELY LOW-FLUENCE CO2-LASER IRRADIATION

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS
  • T SAKKA
  • ,
  • M IWASAKI
  • ,
  • Y OGATA

88
21
開始ページ
3129
終了ページ
3137
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1039/ft9928803129
出版者・発行元
ROYAL SOC CHEMISTRY

Infrared multiphoton absorption (IRMPA) and dissociation (IRMPD) of CClF2CH2Cl have been studied by low-fluence CO2 laser irradiation (< 1.0 j cm-2) . Laser beams of spatially uniform intensity, obtained by mild focusing and a short irradiation cell length, were used. The IRMPD yields were measured as a function ot reactant pressure, added-gas pressure, laser-energy fluence and laser wavenumber, and the IRMPA was measured as a function of reactant pressure, added-rare-gas pressure, and laser-energy fluence. The results of the IRMPD yields plotted against reactant and added-gas pressure show that molecular collisions play an important role in the excitation process. The effects of the reactant pressure and added-rare-gas concentration upon the product yield can be interpreted by a combination of some positive and negative effects of molecular collisions. On the other hand, the dissociation yields obtained as a function of added CF2CHCl pressure suggest that the relaxation of anharmonicity bottlenecking by resonant vibrational energy transfer is also important for IRMPD of this molecule. It can be seen that the other experimental results, i.e. the results of the IRMPA experiments and the frequency dependence of the IRMPD yield are consistent with the above interpretation.

リンク情報
DOI
https://doi.org/10.1039/ft9928803129
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1992JX92300002&DestApp=WOS_CPL
ID情報
  • DOI : 10.1039/ft9928803129
  • ISSN : 0956-5000
  • Web of Science ID : WOS:A1992JX92300002

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