Chemical Reactivities of the Cation and Anion of M@C82 (M = Y, La, and Ce)

Abstract
The chemical reduction and oxidation of [email protected]82 (M = Y, La, and Ce) afford the corresponding anion and cation, respectively, which show unique and interesting chemical reactivities. It is found that the successful reversible gain or loss of electrons by ionization is useful for controlling the stability and reactivity of [email protected]82 toward both nucleophiles and electrophiles.