A tandem mass spectrometric study of C2H5I+CH3 ions: A search for the non-classical ethyl cation stabilized by methyl iodide
✍ Scribed by Dmitri V. Zagorevskii; John L. Holmes
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 628 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1076-5174
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✦ Synopsis
The results of this study have shown that the C,H,I+CH, ion containing classical and non-classical forms of the ethyl group can be generated by gas-phase ion-molecule reactions. The classical ions fragment by CH, and CH,' losses, the latter without loss of positional identity of H atoms in the ethyl group. Hydrogen scrambling, however, precedes ethene loss, taking place in an ion of non-classical form. The latter is produced directly from ion-molecule reactions and from energy-rich classical ions. The relative energies of the classical and non-classical ions could not be determined, although the former was proposed to be the global minimum. Finally, the classical ion serves as a source for the ylid ion CHJCH;', which previously had eluded preparation.