Materials science: C66 fullerene encaging a scandium dimer
Materials science: C66 fullerene encaging a scandium dimer
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DOI：
10.1038/35044195
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发表时间：
2000-11
期刊：
影响因子：
64.8
通讯作者：
Chunru Wang;T. Kai;T. Tomiyama;Takuya Yoshida;Yuji Kobayashi;E. Nishibori;M. Takata;M. Sakata;H. Shinohara
中科院分区：
文献类型：
--
作者：
Chunru Wang;T. Kai;T. Tomiyama;Takuya Yoshida;Yuji Kobayashi;E. Nishibori;M. Takata;M. Sakata;H. Shinohara
碳笼（富勒烯）的几何形状由孤立五边形规则（IPR）控制，该规则指出最稳定的富勒烯是所有五边形都被五个六边形包围的富勒烯。尽管这一规律已被实验证实，但C60 ~ C70范围内的富勒烯不可能遵守这一规律，本文描述了一种违反IPR的金属富勒烯Sc2@C66的制备和表征。我们的研究结果表明，封装的金属二聚体显着稳定，否则极不稳定的C66富勒烯。
The geometry of carbon cages (fullerenes) is governed by the isolated-pentagon rule (IPR),, which states that the most stable fullerenes are those in which all pentagons are surrounded by five hexagons. Although this rule has been verified experimentally,,, it is impossible for fullerenes in the range C60to C70to obey it. Here we describe the production and characterization of an IPR-violating metallofullerene, Sc2@C66, a C66fullerene encaging a scandium dimer. Our results indicate that encapsulation of the metal dimer significantly stabilizes this otherwise extremely unstable C66fullerene.