Production, isolation, and EELS characterization of Ti2@C84 dititanium metallofullerenes

被引：41

作者：

Cao, BP

Suenaga, K

Okazaki, T

Shinohara, H ^{[1
]}

机构：

[1] Nagoya Univ, Fac Sci, Dept Chem, Nagoya, Aichi 4648602, Japan

[2] Meijo Univ, Japan Sci & Technol Corp, Dept Phys, Nagoya, Aichi 4688502, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2002年 / 106卷 / 36期

关键词：

D O I：

10.1021/jp026013b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three isomers of Ti-2@C-84 metallofullerenes, Ti-2@C-84 (I,II,III), have been isolated by the so-called multistage high-performance liquid chromatography (HPLC) method and characterized by laser-desorption time-of-flight mass spectrometry (LD-TOF MS), UV-vis-NIR absorption, and electron energy loss spectroscopy (EELS). Both the HPLC elution behaviors and UV-vis-NIR absorption spectra of these isomers are different from those of the other M-2@C-84 type metallofullerenes of groups 2 and 3 and lanthanide metal atoms. The results indicate that the Ti-2@C-84 isomers possess unique electronic structures, which are substantiated by EELS analyses on the valence state of Ti atoms within these metallofullerenes.

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页码：9295 / 9298

页数：4

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