The UV spectra of (1) (C₆₀+p-xylene) solution in THF ( and ), (2) the transformed standard spectrum of C₆₀, (3) p-xylene in THF corresponding to ( in the λ range from 240 to 280 nm), and (4) p-xylene obtained as a difference of (1) and (2) spectra (with the calculated value of ). The insert shows the normalized spectrum of p-xylene in THF (solid line) and normalized spectra of p-xylene obtained by subtraction of the C₆₀ spectrum from the spectra of (C₆₀+p-xylene) solutions in THF with various concentrations of p-xylene and C₆₀: , (dash line); , (short dash line); , (dot line).