Flash photolysis-shock tube studies
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.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 508165
- Report Number(s):
- ANL/CHM/CP--92855; CONF-9705135--1; ON: DE97007074
- Country of Publication:
- United States
- Language:
- English
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