S. Guha et al., EXTRINSIC NATURE OF THE 2.5 EV RAMAN RESONANCE IN C-60, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 256, 1994, pp. 391-398
We present experimental evidence that the resonance near 2.5 eV observ
ed in the Raman excitation profile of C-60 is induced by the interacti
ons of the C-60 molecule with the surrounding medium and is not to be
expected in isolated molecules.