Homolytic Reactive Mass Spectrometry of Fullerenes: Interaction of C60 and C70 with Organo- and Organoelement Mercurials in the Electron Impact Ion Source of a Mass Spectrometer; EPR, CIDEP, and MS Studies of Several Analogous Reactions of C60 Performed in Solution
| Autor: | Vasily V. Bashilov, Yury I. Lyakhovetsky, Yuri S. Nekrasov, Viatcheslav I. Sokolov, Boris Tumanskii, Elena A. Shilova |
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| Rok vydání: | 2009 |
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| Zdroj: | The Journal of Physical Chemistry A. 113:13700-13710 |
| ISSN: | 1520-5215 1089-5639 |
| DOI: | 10.1021/jp906058q |
| Popis: | Interaction of C60 with organo- and organoelement mercurials (CF3HgBr, PhHgBr, p-CH3C6H4HgBr, p-CH3OC6H4HgCl, CF3HgPh, Ph2Hg, (o-carborane-9-yl)2Hg, (m-carborane-9-yl)2Hg, (p-carborane-9-yl)2Hg, and (m-carborane-9-yl)HgCl) in the ionization chamber (IC) of the electron impact (EI) ion source of a mass spectrometer at 250−300 °C results in the transfer of the corresponding organic or organoelement radicals from the mercurials to the fullerene. Some of the processes are accompanied by hydrogen addition. C70 reacts with Ph2Hg and (o-carborane-9-yl)2Hg at 300 °C in a similar fashion. A homolytic reaction path is considered for the reactions. It suggests both the thermal and EI initiated homolytic dissociation of the mercurials to the intermediate organic or organoelement radicals followed by their interaction with the fullerenes at the metallic walls of the IC. When EI is involved, the dissociation is supposed to occur via superexcited states (the excited states with the electronic excitation energies higher ... |
| Databáze: | OpenAIRE |
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