Jože Škerjanc and Davorin Dolar
Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia
In a previous paper from this laboratory results from the solution of the Poisson-Boltzmann equation for the spherical cell model of a fullerene molecule at which charged groups are attached have been presented. The electrostatic internal and free energies, degree of binding of counterions, osmotic coefficient, and distribution of counterions around the charged fullerene shell have been calculated. Numerical computations have shown that some properties tend to the well-defined limiting values for vanishing concentrations. In this paper it is shown that limiting values of these properties can be predicted by the analytical solution of the Poison-Boltzmann equation.