Preparation and study of hydrides of fullerenes C60 and C70 |
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| Authors: | A. S. Lobach A. A. Perov A. I. Rebrov O. S. Roshchupkina V. A. Tkacheva A. N. Stepanov |
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| Affiliation: | (1) Institute of Chemical Physics in Chernogolovka, Russian Academy of Sciences, 142432 Chernogolovka, Moscow Region, Russian Federation;(2) L. Ya. Karpov Scientific Research Institute of Physical Chemistry, 10 ul. Vorontsovo pole, 103064 Moscow, Russian Federation;(3) A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky prosp., 117912 Moscow, Russian Federation |
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| Abstract: | Fullerene hydrides were prepared by hydrogenation of fullerences C60 and C70 using proton transfer from 9,10-dihydroanthracene to fullerene and were studied by mass spectrometry (electron impact, field desorption), IR, UV, and1H and13C NMR spectroscopy. The main product of the hydrogenation of C60 is C60H36, which is sufficiently stable. Hydrogenation of fullerene C70 gives a series of polyhydrides C70H n (n=36–46), and the main product is C70H36. The dehydrogenation of C60H36 by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone is not quantitative and results in the formation of fullerene derivatives along with C60. The comparison of the IR and1H and13C NMR spectral data for solid C60H36 with the theoretical calculations suggests that the fullerene hydride has aT-symmetric structure and contains four isolated benzenoid rings located at tetrahedral positions on the surface of the closed skeleton of the molecule. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya. No. 4, pp. 671–678, April, 1997. |
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| Keywords: | fullerene, C60, C70, fullerene hydrides, C60H36, C60H18, C70H36 mass spectrometry, IR spectroscopy, UV spectroscopy,1H and13C NMR |
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