Core photoionization satellites in fullerence and related model systems

The so-called shake-up satellites accompanying C_1s photoionization in C₆₀ have been studied theoretically by means of INDO /CI . It is found that the lowest shake-up satellites in C₆₀ correspond to global charge-transfer excitions that move charge from the opposite side of the fullerence cage to the core-hole region, whereas higher-energy satellites tend to move charge from regions nearer to the core hole. Analogies are drawn, with, on the one hand, smaller model molecules such as napthalene and acenaphtylene and, on the other hand, infinite systems such as graphite. © 1994 John Wiley & Sons, Inc.