A stable non-classical metallofullerene family

S. Stevenson, P. W. Fowler, T. Heine, J. C. Duchamp, G. Rice, T. Glass, K. Harich, E. Hajdu, R. Bible and H. C. Dorn ()
Additional contact information
S. Stevenson: Virginia Tech
P. W. Fowler: School of Chemistry, University of Exeter
T. Heine: Dipartimento di Chemica 'G. Ciamician' Università di Bologna
J. C. Duchamp: Emory and Henry College
G. Rice: Virginia Tech
T. Glass: Virginia Tech
K. Harich: Virginia Tech
E. Hajdu: Searle
R. Bible: Searle
H. C. Dorn: Virginia Tech

Nature, 2000, vol. 408, issue 6811, 427-428

Abstract: Abstract In the evolving field of fullerenes, nanotubes and endohedral metallofullerenes, the isolated-pentagon rule (IPR)1 is sacrosanct — exceptions have been predicted2,3, but no bare carbon cages with adjacent pentagons have been characterized. Small organic molecules with metal-stabilized fused five-membered rings (pentalenes) have been created4, however, and here we describe a family of non-classical endohedral metallofullerenes with the general structure AxSc3−xN@C68 (where x = 0–2, A is a rare-earth metal, Sc is scandium and N is nitrogen) that has a non-IPR cage of only 68 carbon atoms containing annelated five-membered rings. This internal ring network is metal-stabilized and is accessible for external organic reaction chemistry.

Date: 2000
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DOI: 10.1038/35044199

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