Isolation and spectroscopic characterization of two isomers of the metallofullerene Nd@C-82
For the first time, two types of the metallofullerene Nd@C-82 have been isolated and characterized. HPLC was used to isolate Nd@C-82(I, II). The two isomers were characterized by mass spectrometry and UV-Vis-NIR absorption spectroscopy. Nd@C82(I) was found to be similar in structure to the main isom...
| Main Authors: | , , , , , |
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| 格式: | Conference item |
| 出版: |
2005
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| 总结: | For the first time, two types of the metallofullerene Nd@C-82 have been isolated and characterized. HPLC was used to isolate Nd@C-82(I, II). The two isomers were characterized by mass spectrometry and UV-Vis-NIR absorption spectroscopy. Nd@C82(I) was found to be similar in structure to the main isomer of other lanthanofullerenes such as La@C-82, as was previously reported. We assign Nd@C-82(I) to have a C-2v cage symmetry. Nd@C-82(II) showed a markedly different UV-Vis-NIR absorption spectrum to Nd@C-82(I). Its spectrum is in good agreement with that of the minor isomer of metallofullerenes such as Pr@C-82. We therefore assign Nd@C-82(II) to have a C-s cage symmetry. In contrast to other metallofullerenes, both isomers appear to be equally abundant. |
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