PHOTOINDUCED CHARGE-TRANSFER IN EXCITED C-60

Based on the original inequality, I(D) - A(A) - U-C < 0, a generalize d mechanism for photoinduced charge transfer (PCT) in the excited C-60 is proposed. Using the single configuration interaction approximation , we find that the increase of the electron affinity in the excited C- 60, which has been experimentally confirmed, plays a critical role in the photoinduced charge transfer. This role becomes more significant w hen the donor is not excited. We discover that the increase of the ele ctron-phonon coupling a can improve the electron affinity significantl y, whereas the electron-electron interaction slightly affects the elec tron affinity.