Isolation and Characterization by 13C NMR Spectroscopy of [84]Fullerene Minor Isomers
Isolation and Characterization by 13C NMR Spectroscopy of [84]Fullerene Minor Isomers
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DOI：
10.1021/jp9925132
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发表时间：
1999-10
影响因子：
2.9
通讯作者：
T. John S. Dennis;T. Kai;K. Asato;Tetsuo Tomiyama;H. Shinohara;Takuya Yoshida;Yuji Kobayashi;H. Ishiwatari;Y. Miyake;Koichi Kikuchi;Y. Achiba
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文献类型：
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作者：
T. John S. Dennis;T. Kai;K. Asato;Tetsuo Tomiyama;H. Shinohara;Takuya Yoshida;Yuji Kobayashi;H. Ishiwatari;Y. Miyake;Koichi Kikuchi;Y. Achiba
首次报道了[84]富勒烯（C84）的少量异构体（总共五种）的分离，并通过 13C NMR 光谱对其进行了表征。还报告了这些异构体的可见光近红外吸收光谱。 13C NMR结果表明，分离的C84异构体按照丰度递减的顺序具有C2、Cs(a)、Cs(b)、D2d(I)和D2(II)分子点群对称性。此外，我们在 HPLC 色谱图中发现了与 Cs(b)-C84 相邻的另一种 C84 次要异构体。
The isolation of minor isomers of [84]fullerene (C84), five in total, and their characterization by 13C NMR spectroscopy, have been reported for the first time. The vis−near-infrared absorption spectra for these isomers are also reported. The 13C NMR results indicate that the isolated C84 isomers have, in order of decreasing abundance, C2, Cs(a), Cs(b), D2d(I), and D2(II) molecular point group symmetry. In addition, we have found another C84 minor isomer adjacent to Cs(b)-C84 in the HPLC chromatogram.