C66 fullerene encaging a scandium dimer

Chun-Ru Wang (), Tsutomu Kai, Tetsuo Tomiyama, Takuya Yoshida, Yuji Kobayashi, Eiji Nishibori, Masaki Takata, Makoto Sakata and Hisanori Shinohara
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Chun-Ru Wang: Nagoya University
Tsutomu Kai: Nagoya University
Tetsuo Tomiyama: Nagoya University
Takuya Yoshida: Osaka University
Yuji Kobayashi: Osaka University
Eiji Nishibori: Nagoya University
Masaki Takata: Nagoya University
Makoto Sakata: Nagoya University
Hisanori Shinohara: Nagoya University

Nature, 2000, vol. 408, issue 6811, 426-427

Abstract: Abstract The geometry of carbon cages (fullerenes) is governed by the isolated-pentagon rule (IPR)1,2, which states that the most stable fullerenes are those in which all pentagons are surrounded by five hexagons. Although this rule has been verified experimentally3,4,5, it is impossible for fullerenes in the range C60 to C70 to obey it. Here we describe the production and characterization of an IPR-violating metallofullerene, Sc2@C66, a C66 fullerene encaging a scandium dimer. Our results indicate that encapsulation of the metal dimer significantly stabilizes this otherwise extremely unstable C66 fullerene.

Date: 2000
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DOI: 10.1038/35044195

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