We have offered a method of obtaining fine-structured vibronic spectra
of fullerenes. At liquid-helium temperatures tens of narrow lines wit
h half-width approximate to 0.5 meV have been observed in the emission
and absorption spectra of fullerene molecules embedded in the matrice
s of some organic crystals. Using this method, the Zeeman effect on th
e C-70 molecules has been observed for the first time.