Effects of Intense Ultrasound Treatment of C60 Solutions |
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| Authors: | Franco Cataldo Dieter Heymann |
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| Affiliation: | 1. Progega s. n. c. , Via Casilina 1626/A, 00133, Rome, Italy;2. Dept. of Geology and Geophysics , Rìce University , 6100 Main St., Houston, TX, 77005-1892, USA |
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| Abstract: | Abstract C60 was treated at room temperature, in air with intense ultrasound in the following solvents; decalin, tetralin. cyclohexane and CCl4. It is shown by UV-VIS and FT-IR spectroscopy that in decalin and in tetralin the dominant reaction seems to be a sono-oxidation, although more complex reactions involving the solvent take place. In CC14 sono-oxidation is accompanied by an extensive sono-polymerization. Products in CCl4 are C60O, C60O2 and others; the sonopolymer collected from sonicated CCl4 was easily identified by FT-IR spectroscopy. Sonopolymerization occurs also in decalin and tetralin and is promoted by free radicals as in the case of CCl4. No reactions are observed in cyclohexane due to the very low solubility of C60 in this solvent and the poor cavitation ability of cyclohexane under the action of ultrasound. |
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