DIRECT PREPARATION OF RADIOACTIVE FULLERENES AS A TRACER FOR APPLICATIONS

摘要

Fullerenes; C_(60) and C_(70), were irradiated by bremsstrahlung and charged particles. The irradiated samples were dissolved in CS_2 and filtrated to remove insoluble byproducts. Finally, radioactive fullerenes such as ~(11)CC_(59),~(13)NC_(59)and products, namely fullerene dimers, trimers labeled with ~(11)C or ~(13)N, were isolated and detected in a liquid phase by radiochromatopraphy. The production of these radioactive materials is one of the most important factor to study the chemical or physiological behavior of trace amount of fullerene.