TITLE

Infrared multiphoton dissociation of CBrF2CHClF, CBrF2CHBrF, and CBrClFCBrF2 in a molecular beam

AUTHOR(S)
Yokoyama, Atsushi; Yokoyama, Keiichi; Fujisawa, Ginji
PUB. DATE
December 1994
SOURCE
Journal of Chemical Physics;12/15/1994, Vol. 101 Issue 12, p10602
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Dynamics and mechanisms of infrared multiphoton dissociation of CBrF2CHClF, CBrF2CHBrF, and CBrClFCBrF2 have been studied using a photofragmentation translational spectroscopy. All molecules dissociated through C–Br bond rupture reactions. At high laser fluence, the halogenated ethyl radicals produced by the primary dissociation reactions dissociated through carbon–halogen bond ruptures. Center-of-mass product translational energy distributions for the C–Br and C–Cl bond ruptures of all halogenated ethanes and ethyl radicals studied are essentially consistent with those calculated by Rice–Ramsperger–Kassel–Marcus (RRKM) theory. This indicates that there exists essentially no exit channel barrier on the potential energy surface for the C–Br or C–Cl bond rupture of the halogenated ethanes and ethyl radicals. © 1994 American Institute of Physics.
ACCESSION #
7629596

 

Related Articles

  • Selective infrared multiphoton dissociation of CF[sub 3]I molecules in a pulsed gasdynamic stream: Dependence of the [sup 13]C enrichment factor in the C[sub 2]F[sub 6] product on the molecular concentration in the beam. Makarov, G. N. // Technical Physics Letters;Dec98, Vol. 24 Issue 12, p921 

    An investigation was made of isotopically selective infrared multiphoton dissociation of CF[sub 3]I molecules in a pulsed gasdynamic stream. It was observed that the [sup 13]C enrichment factor in the C[sub 2]F[sub 6] product depends strongly on the molecular concentration in the stream. Reasons...

  • Photochemistry and dynamics of C[sub 6]H[sub 6]--O[sub 2] clusters at 226 nm. DeBoer, Gary; Young, Mark A. // Journal of Chemical Physics;4/1/1997, Vol. 106 Issue 13, p5468 

    Focuses on the photochemistry and dynamics of small C[sub 6] H[sub 6]-oxygen clusters in a supersonic expansion using with laser excitation and multiphoton ionization probes. Fine structure of the population of the oxygen fragment and the resultant branching fractions; Net effect of cluster...

  • Watching molecules reorient in liquid crystal droplets with multiphoton-excited fluorescence microscopy. Higgins, Daniel A.; Luther, Brenda J. // Journal of Chemical Physics;8/15/2003, Vol. 119 Issue 7, p3935 

    A new form of time-resolved multiphoton-excited fluorescence imaging is described and used to study electric-field-induced reorientation dynamics in polymer-dispersed liquid crystal (LC) films. This method provides information on the static and dynamic LC orientation via polarization-dependent...

  • Infrared multiphoton dissociation of vinyltrifluorosilane. Koshliakov, P. V.; Gorelik, S. R.; Chesnokov, E. N.; Vorobiev, A. V.; Petrov, A. K. // Applied Physics B: Lasers & Optics;Sep2006, Vol. 84 Issue 3, p529 

    Infrared multiphoton absorption and dissociation of vinyltrifluorosilane molecules under the action of pulsed TEA CO2-laser were experimentally studied. The composition of the end dissociation products has been analyzed. Using quantum chemical calculations, we have identified the dissociation...

  • Multiphoton coherent excitation of molecules. Diels, J.-C.; Besnainou, S. // Journal of Chemical Physics;12/1/1986, Vol. 85 Issue 11, p6347 

    Two different approaches to multiphoton excitation of an anharmonic multilevel system are presented. Both methods result in nearly complete population of the upper state. The first approach involving phase shifting portions of the coherent excitation is treated analytically with square pulses....

  • Femtosecond dynamics of photoinduced molecular detachment from halogenated alkanes. II.... Qingguo Zhang; Marvet, Una // Journal of Chemical Physics;9/15/1998, Vol. 109 Issue 11, p4428 

    Examines the photoinduced molecular detachment dynamics of CH[sub 2]I[sub 2] with femtosecond time resolution. Observation and interpretation of weak fluorescence; Analysis on the fast decaying rotational anisotropy; Discussion on the detachment dynamics; Details on multiphoton transition and...

  • Preselecting paths for multiphoton dynamics using artificial intelligence. Chang, Johnny; Wyatt, Robert E. // Journal of Chemical Physics;8/15/1986, Vol. 85 Issue 4, p1826 

    A new, systematic method for selecting the most important basis functions by using an artificial intelligence tree pruning algorithm is introduced. The technique can be applied to any physical problem which gives rise to coupled equations but is applicable in general to any problem which could...

  • Pulse-pair control of resonance leaking in molecular multiphoton transitions. Lan, Boon-Leong; Vrábel, Imrich; Jakubetz, Werner // Journal of Chemical Physics;Dec2004, Vol. 121 Issue 21, p10401 

    We use model five-level systems to study resonance leaking of π-pulse-induced multiphoton (MP) transitions along a strongly coupled anharmonic ladder. We demonstrate that the presence of a weakly bound background state attached to the ladder either in linear or Λ configuration can have...

  • Measurement of the γp→ηp Reaction with the Crystal Ball Detector at the Mainz Microtron (MAMI-C). Strakovsky, I. I.; Prakhov, S.; Arndt, R. A.; Azimov, Ya. I.; Briscoe, W. J.; Krusche, B.; Nefkens, B. M. K.; Paris, M. W.; Workman, R. L. // AIP Conference Proceedings;10/24/2011, Vol. 1374 Issue 1, p439 

    The γp→ηp reaction has been measured with the Crystal Ball and TAPS multiphoton spectrometers in the energy range from the production threshold to 1.4 GeV (1.49≤W≤1.87 GeV). Bremsstrahlung photons produced by the 1.5-GeV electron beam of the Mainz Microtron MAMI-C and...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics