Abstract
Photoelectron spectra of molecular C 70 were recorded in the photon energy range from 20 to 60 eV to investigate the photoionization cross section behavior of the outermost molecular orbitals. As in the case of C 60, these photolines exhibit photon energy-dependent intensity oscillations, thus corroborating a quantum oscillation model based on the fullerene's unique shape. The photoelectron angular distribution parameter β measured during the same experiment shows, similarly to C 60, no pronounced oscillations, rather rising continuously as the photon energy is increased, a fullerene-unspecific behavior also known from other carbon-containing molecules, such as CO.
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