(Invited) Stabilization of Giant Fullerenes C2(41)-C90, D3(85)-C92, C1(132)-C94, C2(157)-C96, C1(175)-C98, D5(450)-C100, Cs(574)-C102and C2(816)-C104by Encapsulation of a Large La2C2 Cluster. (7th July 2017)

• Record Type: Journal Article
• Authors: Zhao, Shasha; Cai, Wenting; Lu, Xing
• Is Part Of: ECS transactions. Volume 77:Number 11(2017)
• Page Start: 559
• Page End: 565
• Publication Date: 2017-07-07
• Subjects: Electrochemistry -- Periodicals; Electrochemistry; Periodicals; Electronic journals; Electronic journal; 541.37
• DOI: 10.1149/07711.0559ecst
• Languages: English
• ISSNs: 1938-5862

Abstract

Abstract : We demonstrate the successful isolation and unambiguous crystallographic characterization of a series of higher carbide cluster metallofullerenes, presenting new insights into the molecular structures and cluster-cage interactions of endohedral metallofullerenes. They are identified as La2 C2 @C2 (41)-C90, La2 C2 @D3 (85)-C92, La2 C2 @C1 (132)-C94, La2 C2 @C2 (157)-C96, La2 C2 @C1 (175)-C98, La2 C2 @D5 (450)-C100, La2 C2 @Cs (574)-C102, and La2 C2 @C2 (816)-C104 . Our experimental results have confirmed that La2 C92-106 tend to form carbide cluster metallofullerenes La2 C2 @C90-104 instead of the dimetallofullerenes La2 @C92-10 6, which is rationalized by considering a synergistic effect of inserting a C2 unit into the fullerene cage to ensure strong metal-cage interactions by partially neutralizing the charges from the metal ions and by fulfilling the coordination requirement of the La 3+ ions as much as possible.