Spectrophotometric Analysis of C60 and C70 Fullerences in the Toluene Solutions

Abstract

The method for determination of the molar absorption coefficient (MAC) of C-60 and C-70 fullerenes has been developed. The values of MAC obtained by the graphic method are refined there after by the mathematical method of successive approximation. The levels of analytical wavelengths, the ranges for concentrations of fullerene mixtures, solutions optimum for the qualitative analysis have been established. The spectra Of C-60 solutions and solutions of its mixtures with C-70 containing C(60)greater than or equal to0.5(.)10(-4) mol/l show the bathochromic shift of the absorption band with the maximum at lambda=335 nm. NR - 12 PU - SPRINGER PI - DORDRECHT PA - PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS