2,11-Dibromo-5,8-dibut-yl[4]helicene

Hiroyuki Isobe, Taisuke Matsuno, Shunpei Hitosugi, Waka Nakanishi

Research output: Contribution to journalArticlepeer-review

Abstract

A racemic mixture of the title compound, C26H 26Br2, a brominated [4]helicene, crystallizes, forming columns of stacked mol-ecules. There are two crystallographically unique mol-ecules in the asymmetric unit, both with the same helical handedness. As is typical with helicene congeners, the unique mol-ecules show short inter-atomic contacts between H atoms at the fjord region, with H⋯H distances of 1.87 and 1.94 Å. Mol-ecules with the same helical handedness segregate in the crystal packing, forming homochiral columns. The stacked mol-ecules are piled in a column with alternate orientations. The shortest C⋯C distance in the stacked mol-ecules is 3.306 (4) Å.

Original languageEnglish
Pages (from-to)o1239
JournalActa Crystallographica Section E: Structure Reports Online
Volume68
Issue number4
DOIs
Publication statusPublished - 2012 Apr

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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