Acta Phys. -Chim. Sin. ›› 2004, Vol. 20 ›› Issue (06): 573-576.doi: 10.3866/PKU.WHXB20040604

• Communication • Previous Articles     Next Articles

Preparation,Isolation and Characterization of Ca@C88 and Ca@C90

Zhang Ya;Shi Zu-Jin;Hao Ce;Xu Jian-Xun;He Xiao-Ran;Gu Zhen-Nan   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871;School of Chemical Engineering, Dalian Institute of Technology, Dalian 116028
  • Received:2004-02-27 Revised:2004-03-25 Published:2004-06-15
  • Contact: Shi Zu-Jin

Abstract: Ca-containing Endohedral Metallofullerenes were synthesized by DC arc discharge method.C88 and C90-based group-2 metallofullerenes, Ca@C88 and Ca@C90 (I, II),were first isolated by multi-stage high-performance liquid chromatography (HPLC).All species were characterized by MAL-DI-TOF MS and UV-Vis-NIR absorption spectroscopy. Their electronic structure and possible molecular symmetries were discussed according to their retention times and absorption spectra.

Key words: Endohedral metallofullerenes, Calcium, Absorption spectrum