✦ LIBER ✦
Formation and collision-induced dissociation behaviour of doubly charged gas-phase fullerene anions C, C and higher homologues. Collision-induced electron-stripping process
✍ Scribed by A. Mandelbaum; A. Etinger
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 200 KB
- Volume
- 28
- Category
- Article
- ISSN
- 1076-5174
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✦ Synopsis
Doubly charged molecular anions M2-of fullerenes are formed in the gas phase under chemical ionization conditions with isobutane as the reagent gas. The efficiency of double electron attachment increases with increasing size of the fullerenes: the C& ion is the most abundant doubly charged anion in the negative-ion CI mass spectrum, although the concentration of C,o was about 12% in the fullerene mixture examined. Under low-energy collisioninduced dissociation conditions an electron is ejected from the doubly charged C : ; ion resulting in the singly charged molecular anion C ; ; .