A theoretical study on the electron-exchange mechanism in the CF3H+Ar(3P) →CF*3 + H + Ar reaction
✍ Scribed by H. Takahashi; H. Ohoyama; T. Kasai; K. Kuwata; M. Nakano; K. Yamaguchi
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 491 KB
- Volume
- 224
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
AhSlId
The orientational dependence of the exterior electron densities was calculated by ab initio RHF method in the CFJI + Ar( lP) +CF$ + H + Ar reaction to account for the electron-exchange mechanism. The results showed that the 6ar orbital of CF3 H is responsible for the two reactive sites on the molecular axis and the la, orbital for the side-on reactive site, confirming a close relationship between the spatial distribution of the molecular orbitals and the shape of opacity function.
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Chemiluminexence of the CQ radical formed in the reaction of Ar( 'P) with the oriented CFaH was taken at five different wavelengths in the range from 500 to 700 nm for two reactant orientations with a reference orientation. A remarkable alignment dependence of the emission spectra was observed. Anal
A metastabie Ar beam was produced by electron impact with glow discharge. The A@P& beam intensity was estimated to be z I x 1 014 atoms sr-' s-'. Crossing this beam with a CF,H beam, collision-free emission of CF3 in the visible region was observed. The intensity maximum of the newly observed emiss
Ab-initio computations at 298.15 K were made of the activation quantities AH\*, AS\*, and AG\* and of the reaction quantities AH r and AS r for is the transition state (TS). GAUSS-IAN92 was used and energies computed at a slightly modified Gaussian-2 level. Two potential surfaces for the TS had sym
A variety of relative and absolute techniques have been used to measure the reactivity of fluorine atoms with a series of halogenated organic compounds and CO. The following rate constants were derived, in units of cm3 molecule-' s-l: CH3F, (3.7 2 0.8) X CH3C1, (3.3 2 0.71 X 10 -'I; CH3Br, (3.0 2 0.