关键词: 金属富勒烯, 高效提取, 电化学性质

Abstract: Sm@C₈₂ (Ⅲ) was effectively extracted by the high-temperature-DMF extraction and separated in one step HPLC, making the further studies of its properties possible. The successful purification of Sm metallofullerene with such a low yield indicates that the high-temperature-DMF extraction is much effective. The cyclic and differential pulse voltammgrams of the pure Sm@C₈₂ (Ⅲ) were first measured, indicating that it has a good electron accepted ability. Up to 6 electrons can be added to them. The analysis of the potentials, the potential differential and the number of electron transferred show that Sm prefers to take +2 charge state in the carbon cage. The study of electronic structure would help us to produce, extract more metallofullerenes and synthesize useful materials.

Key words: Metallofullerene, Highly effective extraction, Electrochemical property