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Studies on extracting solutions of endohedral rare-earth metallofullerenes by matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry

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Abstract

Thirteen extracting solutions of rare-earth metallofullerenes containing La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb respectively have been investigated by means of matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry. The influences of the positive-ion/negative-ion mode, laser intensity, matrix and mass discrimination to the analytical results are studied, based on which the optimal analytical conditions have been determined. The results show that the extracting solutions contain large quantities of rare-earth metallofullerenes besides empty fullerenes. On the basis of comparing their relative intensities, the different structure stabilities and solubilities of metallofullerenes with different rare-earth metals encapsulated into the fuUerene cages, as well as some possible reasons to those differences, are discussed.

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Authors and Affiliations

  1. The Key Laboratory of Applied Spectroscopy, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022, Changchun, China

    Sun Dayong, Liu Zhiqiang, Liu Ziyang, Guo Xinghua, Xu Wenguo & Liu Shuying

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  1. Sun Dayong
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  2. Liu Zhiqiang
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  3. Liu Ziyang
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  4. Guo Xinghua
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  5. Xu Wenguo
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  6. Liu Shuying
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Project supported by the National Natural Science Foundation of China.

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Sun, D., Liu, Z., Liu, Z. et al. Studies on extracting solutions of endohedral rare-earth metallofullerenes by matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry. Sc. China Ser. B-Chem. 40, 590–599 (1997). https://doi.org/10.1007/BF02875477

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  • DOI: https://doi.org/10.1007/BF02875477

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