Facile Access to Y2C2n (2n = 92-130) and Crystallographic Characterization of Y2C2@C1(1660)-C108: A Giant Nanocapsule with a Linear Carbide Cluster

A series of giant metallofullerenes Y2C2n (2n = 92-130) have been successfully obtained through the treatment of the fraction enriched by 1,2-dichlorobenzene with SnCl4. Subsequent chromatographic separation gives a pure sample with a composition of Y2C110. Crystallographic results reveal that this...

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Bibliographic Details
Published in:ACS nano 2018-02, Vol.12 (2), p.2065-2069
Main Authors: Pan, Changwang, Bao, Lipiao, Yu, Xianyong, Fang, Hongyun, Xie, Yunpeng, Akasaka, Takeshi, Lu, Xing
Format: Article
Language:English
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Summary:A series of giant metallofullerenes Y2C2n (2n = 92-130) have been successfully obtained through the treatment of the fraction enriched by 1,2-dichlorobenzene with SnCl4. Subsequent chromatographic separation gives a pure sample with a composition of Y2C110. Crystallographic results reveal that this endohedral takes the carbide form, namely Y2C2@C1(1660)-C108, representing as the largest metallofullerene that has been characterized by crystallography to date. Despite the disorder of the metal cluster, the major Y2C2 adopts a previously predicted linear configuration, indicating that the compression of the internal cluster by the cage is almost negligible in this giant cage. Electrochemical studies suggest that Y2C2@C1(1660)-C108 is a good electron donor instead of an electron acceptor.
ISSN:1936-086X
DOI:10.1021/acsnano.8b00384