Flash photolysis-shock tube studies

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Following earlier investigations on the dissociation rates of CF{sub 3}Cl, CF{sub 2}Cl{sub 2}, CFCl{sub 3}, and CCl{sub 4}, we systematically applied theory to explain the rate behavior for the this homologous series. Three different unimolecular theoretical methods were compared. The inferred results were in good agreement with one another suggesting that the conclusions are not strongly dependent on the degree of theoretical rigor. In all of these cases and in others, we have determined the best mutual values for both threshold energy, E{sub 0}, and energy transfer parameter, ({Delta}E){sub down}. The best fits generally give values for E{sub 0} that ... continued below

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5 p.

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Michael, J.V. August 1, 1997.

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Description

Following earlier investigations on the dissociation rates of CF{sub 3}Cl, CF{sub 2}Cl{sub 2}, CFCl{sub 3}, and CCl{sub 4}, we systematically applied theory to explain the rate behavior for the this homologous series. Three different unimolecular theoretical methods were compared. The inferred results were in good agreement with one another suggesting that the conclusions are not strongly dependent on the degree of theoretical rigor. In all of these cases and in others, we have determined the best mutual values for both threshold energy, E{sub 0}, and energy transfer parameter, ({Delta}E){sub down}. The best fits generally give values for E{sub 0} that are in good agreement with other thermochemical methods. Also, for halogen containing molecules, the derived ({Delta}E){sub down} values are large, giving effective collisional efficiency factors, {beta}{sub c}, between {approx}0.02 and 0.10 at 1300 K.

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5 p.

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OSTI as DE97007074

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  • DOE/BES combustion research meeting, Chantilly, VA (United States), 28-30 May 1997

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  • Other: DE97007074
  • Report No.: ANL/CHM/CP--92855
  • Report No.: CONF-9705135--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 508165
  • Archival Resource Key: ark:/67531/metadc690754

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  • August 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 16, 2015, 12:30 p.m.

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Michael, J.V. Flash photolysis-shock tube studies, article, August 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc690754/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.