Radioactive Metallofullerenes: Hot Atom Chemistry Aspects

The n,γ-reaction of metallofullerenes of Tb, Sm and Sc₃N@C₈₀ is studied. Unusually high compared to trivalent lanthanofullerenes retention yield is observed for ¹⁵³Sm@C_2n. The recoil implosion yield of ¹⁷⁷Lu atom in molecularly tight mixture of Lu diphthalocyanine and C₆₀ is measured. It is shown that possibly unfavorable geometry of target/projectile system can not explain low implosion yields observed so far. Possible role of chemical properties of recoil atom at hot atom-cage interaction and mechanisms of energy dissipation are discussed.