Ultraviolet photoelectron spectra of higher fullerenes C78 and C96 are measured with a synchrotron radiation light source. The spectral intensity oscillates and the peak positions shift, when the incident photon energy is changed. The hv = 20 eV spectrum of C78 resembles that of C76, which suggests their analogous electronic structures. Comparison of the results with theoretical calculations is in favor of a C'2v geometry for the main C78 isomer and a C1 geometry for C96. Upon potassium dosing onto C96, a new peak emerges just above the first (HOMO) band of C96. The spectra are deformed at high dosage.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry