Abstract
Unusual properties of buckminsterfullerene C 60 were explored, which reacted more efficiently with primary and secondary amines at low temperatures than at elevated temperatures in a solvent, such as benzene, toluene, and xylene. Low temperatures favor the formation of a charge-transfer complex, which can be detected by UV spectrometry. Furthermore, a series of electron spin resonanceMethod experiments were performed at various low temperatures to detect the formation of C 60 •– . The “low-temperature” acceleration effect on the amination of fullerene C 60 is closely related to solvent and temperatures. The new findings provide an avenue to functionalize buckminsterfullerene C 60 so that the resultant adducts may have controllable solubility in various media. The outcome may offer a solution to enhance its biological and medicinal applicability.