The addition of HCl and (HC1)2 to ethylene is theoretically studied by means of a b initio SCF techniques using the 3-21G basis set. A statistical thermodynamics analysis is also carried out. When a comparison is made with the HF and (HF)2 additions to ethylene, the general fact of the catalytic act
Theoretical study of the gas-phase addition of HF and HCl to ethylene: Analysis of the catalytic action of dimeric halides
✍ Scribed by M. I. Menéndez; D. Suárez; J. A. Sordo; T. L. Sordo
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 648 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0192-8651
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✦ Synopsis
Ab initio MP2/6-31G** calculations render the same mechanism for the gasphase addition of HF and HC1 to ethylene in contrast with previous HF/3-21G calculations. The leading interaction is in both cases the electrophilic attachment of the hydrogen atom in the hydrogen halide to a carbon atom in ethylene. The presence of a second molecule of hydrogen halide causes a catalytic effect by allowing an alternative mechanism for electron density rearrangement through ethylene polarization.
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