Reactions of N/sup +/ and H/sub 3//sup +/ with the structural isomers of C/sub 2/H/sub 2/Cl/sub 2/
Journal Article
·
· J. Phys. Chem.; (United States)
The rate coefficients, k, for the reactions of N/sup +/ ions with the nonpolar molecule trans-1,2-C/sub 2/H/sub 2/Cl/sub 2/ and the polar molecules 1,1-C/sub 2/H/sub 2/Cl/sub 2/ and cis-1,2-C/sub 2/H/sub 2/Cl/sub 2/ have been determined at 27, 68, and 163 K by using the CRESU technique and at 300 K by using the SIFT technique. Also, the SIFT technique has been used to determine the rate coefficients and ion product distributions at 300 K for the reactions of these molecules with H/sub 3//sup +/ ions. The measured rate coefficient for the N/sup +/ reaction involving the nonpolar isomer of C/sub 2/H/sub 2/Cl/sub 2/ is temperature invariant and in close accord with the collisional rate coefficient, k/sub c/, calculated by using the Langevin theory. However, although the increase of the rate coefficients with a decrease in temperature for the two N/sup +/ reactions involving the polar molecules is consistent with the adiabatic capture centrifugal sudden approximation (ACCSA), the magnitudes of the rate coefficients are less than the k/sub c/ predicted by that theory, a temperature-invariant reaction probability of approx. 0.5 being indicated. An explanation for this low reaction probability is tentatively proposed.
- Research Organization:
- CNRS, Meudon (France)
- OSTI ID:
- 5994657
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:23; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKENES
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COSMIC GASES
DATA
ETHYLENE
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
HYDROGEN IONS
HYDROGEN IONS 3 PLUS
INFORMATION
INTERSTELLAR SPACE
IONS
KINETICS
MOLECULAR IONS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
REACTION KINETICS
SPACE
TEMPERATURE DEPENDENCE
THEORETICAL DATA
400201* -- Chemical & Physicochemical Properties
ALKENES
CATIONS
CHARGED PARTICLES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COSMIC GASES
DATA
ETHYLENE
EXPERIMENTAL DATA
FLUIDS
GASES
HYDROCARBONS
HYDROGEN IONS
HYDROGEN IONS 3 PLUS
INFORMATION
INTERSTELLAR SPACE
IONS
KINETICS
MOLECULAR IONS
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
REACTION KINETICS
SPACE
TEMPERATURE DEPENDENCE
THEORETICAL DATA