7,8-(Dichloromethano)homo[70]fullerene, an unusual, but unexceptional, methanoannulene

Andrew F. Kiely, Mark S. Meier, Brian O. Patrick, John P. Selegue, Carolyn Pratt Brock

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The crystal structure of 7,8-(dichloromethano)homo[70]fullerene shows that addition of the dichlorocarbene (:CCl2) to C70 gives a surprisingly normal methano-bridged [9]annulene. The structural changes caused by the addition are highly localized; the C(7)-C(8) distance lengthens by 0.705(2) Å but no other distance changes by more than 0.022(3) Å. Bond angles within the [9]annulene increase by as much as 7.8(1)°, but changes outside the C9 ring are much smaller. The nearly ellipsoidal molecules form hexagonally close-packed layers that interact in pairs through short Cl⋯C, and possibly short Cl⋯ and C⋯C, interactions.

Original languageEnglish
Pages (from-to)1140-1151
Number of pages12
JournalHelvetica Chimica Acta
Issue number4
StatePublished - 2003

ASJC Scopus subject areas

  • Catalysis
  • Biochemistry
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry


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