Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9588614 | Journal of Molecular Liquids | 2005 | 5 Pages |
Abstract
Enthalpies of solution (ÎsolnHθ) of fullerene[60] in benzene, toluene, bromobenzene, 1,2-dichlorobenzene and nitrobenzene have been measured in a Precision Solution Calorimeter at 298 K, by using the ampoule breaking technique. The dissolution of C60 in these aromatic organic solvents was observed to be exothermic, with exception of benzene and nitrobenzene, in which the enthalpy is close to zero. From the experimental values of ÎsolnHθ and solubility data of C60 from the literature, ÎsolnGθ and ÎsolnSθ were calculated. We attempted to correlate (ÎsolnHθ) of C60 in these solvents with the solubility, Hildebrand's solubility parameter and polarizability parameter. Thermodynamic data suggest that the process of dissolution of C60 in the studied aromatic solvents is entropically controlled.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
M.H. Herbst, G.H.M. Dias, J.G. Magalhães, R.B. Tôrres, P.L.O. Volpe,