Identification of dianions of C84 and C90 by electrospray mass spectrometry

被引：44

作者：

Khairallah, G ^{[1
]}

Peel, JB ^{[1
]}

机构：

[1] La Trobe Univ, Sch Chem, Bundoora, Vic 3083, Australia

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 296卷 / 5-6期

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/S0009-2614(98)01093-8

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：

We have observed the dianions of the fullerenes C-84 and C-90 in the negative-ion electrospray mass spectrometry (EMS) of specific solutions of a commercial sample of a mixture of higher fullerenes (C-60 to C-96) which contains mostly C-84. The results of semiempirical calculations show that, in contrast to the cases of C-60 and C-70, these dianions are likely to have strongly positive electron affinities, explaining their stability in a high-vacuum environment. While C-84(2-) has recently been observed in the isolated state, this is the first observation of the intrinsically stable C-90(2-). (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：545 / 548

页数：4

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