高等学校化学学报2001，Vol.22Issue(3)：439-442,4.
金属富勒烯的质谱研究
Mass Spectrometric Studies of Metallofullerene
摘要
Abstract
The endrohel metallofullerene, Gd@C82, Gd@C80, Gd2@C80 were synthesized by using K-H method. The technique of two-step of high pressure and high temperature extraction with 1,3,5-trimethylbenzene(first step) and pyridine(second step) has been successfully utilized to extract metallofullerene of Gd@C82. The gas-phase negative ions of fullerenes Cn(n=60, 70, 78, 82, 84…) and metallofullerene (Gd@C82) have been studied by the ESI-MS, REC-MS and MALDI-TOF-MS. The differences among the mass spectra of ESI-MS, REC-MS and MALDI-TOF-MS have been observed and explained. In contrast to the empty fullerene C82, the metallofullerene Gd@C82 should have a larger HOMO-LUMO gap. Experimental results suggest that Gd@C82 is polarized and Gd3+ located in the off-center position of C82 cage after Gd3+ is trapped into C82 cage.关键词
两步高温高压法/Gd@C82/ESI-MS/HOMO-LUMO/极性分子/非中心位置分类
化学化工引用本文复制引用
郭锬,邢俊鹏,季怡萍,刘志强,刘淑莹,封继康..金属富勒烯的质谱研究 [J].高等学校化学学报,2001,22(3):439-442,4.基金项目
国家自然科学基金 （）
