The voltammetry of C84 isomers

被引:10
作者
Anderson, MR [1 ]
Dorn, HC [1 ]
Stevenson, SA [1 ]
Dana, SM [1 ]
机构
[1] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1998年 / 444卷 / 02期
关键词
fullerenes; C-84; C-82; square-wave voltammetry;
D O I
10.1016/S0022-0728(97)00598-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The square-wave voltammetry of isolated isomers of C-84 is reported. Based on their relative abundance, the isomers are assumed to have D-2 and D-2d symmetry. The D-2 isomer has four reversible reductions at -0.65, -0.98, -1.34, and -1.75 V versus Fc/Fc(+) prior to electrolyte decomposition. This behavior is consistent with previous reports, and is similar to the voltammetry of C-60 and C-70 (e.g. sequential reductions spaced at slightly increasing intervals). The D-2d isomer has five reversible reductions at -0.46, -0.77, -1.58, -1.98, and -2.27 V versus Fc/Fc(+) prior to the onset of electrolyte decomposition. The large potential difference separating the second and third reductions of the D-2d isomer is an aspect of the voltammetry not reported when the D-2d isomer was analyzed as part of a mixture of C-84 isomers (P.L. Boulas, M.T. Jones, R.S. Ruoff et al., J. Phys. Chem. 100 (1996) 7573-7579). The large potential difference between the second and third reductions of the D-2d isomer of C-84 is similar to the voltammetric behavior of C-82. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:151 / 154
页数:4
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