在Kroto及其合作者发现C60后不久,Heath等即在通过激光蒸发浸泡过LaCl3的石墨的产物中获得了富勒烯金属包合物的质谱信息,拉开了笼内富勒烯金属包合物的研究序幕.由于金属和碳笼之间的电子转移改变了富勒烯本身的性质,使得富勒烯金属包合物呈现出新奇的化学特性.随着时间的推移,人们越来越深刻地认识到,金属与富勒烯的掺杂将导致一系列新分子、新材料的出现,而笼内富勒烯金属包合物新颖独特的结构与性质,必将使其在激光、超导、能源、
By the DC arc-discharge of graphite rods doped with other substances in He and NH3 mixing gas, higher endohedral metallofullerenes (EMFs) were synthesized in a high yield. This lays the foundation for the separation, purification and further study of higher EMFs. The doped materials act as heat carriers and at the same time catalyze the growth of higher EMFs, whereas NH3 suppresses the formation of fullerenes such as C60 and C70, etc.