The structure of the C60 molecule: X-ray crystal structure determination of a twin at 110 K

L. I.U. Shengzhong*, L. U. Ying-Jie, Manfred M. Kappes, James A Ibers

*Corresponding author for this work

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Abstract

Single-crystal x-ray diffraction methods were used to determine the crystal and molecular structure of C60 buckminsterfullerene. At 110 kelvin C60 is cubic, apparent Laue symmetry m3m, but it exhibits noncrystallographic systematic extinctions indicative of a twin in which I(hkl) and I(khl) are superimposed. In fact, C60 crystallizes with four molecules in space group Th 6-Pa3 of the cubic system (Laue symmetry m3) with lattice constant a = 14.052(5) angstroms (Å) at 110 kelvin. The twin components are equal. A given component, which has crystallographically imposed symmetry 3 (C3i), displays an ordered structure of a truncated icosahedron. The five independent C=C bonds that join C6 rings average 1.355(9) Å; the ten independent C-C bonds that join C6 and C5 rings average 1.467(21) Å. The mean atom-to-atom diameter of the C60 molecule is 7.065(3) Å. The molecules are very tightly packed in the crystal structure, with intermolecular C⋯C distances as short as 3.131(7) Å.

Original languageEnglish (US)
Pages (from-to)408-410
Number of pages3
JournalScience
Volume254
Issue number5030
StatePublished - Jan 1 1991

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ASJC Scopus subject areas

  • Medicine(all)
  • General

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Shengzhong, L. I. U., Ying-Jie, L. U., Kappes, M. M., & Ibers, J. A. (1991). The structure of the C60 molecule: X-ray crystal structure determination of a twin at 110 K. Science, 254(5030), 408-410.