Abstract
The transformation of the C60 fullerene cluster state into C60/N-methylpyrrolidone (NMP) solution after the addition of a nonpolar solvent (toluene, electric permittivity ɛ= 2.4) is studied. The results of ultraviolet-visible spectroscopy and small-angle neutron scattering measurements are used for comparison of the C60/NMP/toluene system with C60/NMP mixtures with a high-polar solvent (water, ɛ = 80). As to the observed reorganization of the cluster state, the C60/NMP/toluene system is similar to the C60/NMP/water system. This effect is explained by the formation of charge-transfer complexes in the initial C60/NMP solution. These complexes are thought to be soluble in both binary mixtures. The connection between the cluster-reorganization effect and solvatochromism is discussed.
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Original Russian Text © T.V. Tropin, T.O. Kyrey, O.A. Kyzyma, A.V. Feoktistov, M.V. Avdeev, L.A. Bulavin, L. Rosta, V.L. Aksenov, 2013, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, 2013, No. 1, pp. 5–8.
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Tropin, T.V., Kyrey, T.O., Kyzyma, O.A. et al. Experimental investigation of C60/NMP/toluene solutions by UV-Vis spectroscopy and small-angle neutron scattering. J. Surf. Investig. 7, 1–4 (2013). https://doi.org/10.1134/S1027451013010199
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DOI: https://doi.org/10.1134/S1027451013010199