Specifics of C60 Fullerene Cluster Formation in a Solvent Mixture of Toluene and N-Methyl-2-Pyrollidone |
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| Authors: | T. V. Nagorna O. A. Kyzyma L. A. Bulavin D. Chudoba V. M. Garamus M. V. Avdeev V. L. Aksenov |
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| Affiliation: | 1.Joint Institute for Nuclear Research,Dubna,Russia;2.Taras Shevchenko National University of Kyiv,Kyiv,Ukraine;3.Adam Mickiewicz University,Poznan,Poland;4.Helmholtz-Zentrum Geesthacht: Centre for Materials and Coastal Research,Geesthacht,Germany;5.Petersburg Nuclear Physics Institute,National Research Center “Kurchatov Institute”,Gatchina,Russia |
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| Abstract: | The two-level organization of C60 fullerene clusters in solutions of C60 in pure toluene and toluene/N-methyl-2-pyrrolidone solvent mixtures is studied by small-angle X-ray scattering (SAXS). The SAXS data for freshly prepared solutions are compared with the data obtained by dynamic light scattering, a technique we use to assess the temporal stability of the prepared solutions. For all solutions in the mixed solvent, regardless of the ratio between the polar and nonpolar components, the UV?Vis absorption spectra tend to become featureless with time. We attribute this behavior primarily to the presence of the polar component in the molecular environment of fullerene molecules. |
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