Crystal structure of 1-butyl-2,3-di-methylimidazolium dicarba-7,8-nido-undecaborate

M. J. Klemes, L. Soderstrom, J. L. Hunting, A. S. Larsen*, W. T A Harrison (Editor)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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In the title molecular salt, C9H17N2+·C2H12B9-, the carborane cage has a bridging B - H - B bond on the open B3C2 face. The butyl side chain of the cation adopts an extended conformation [C - C - C - C = 179.6 (1)°]. In the crystal, the imidazo-lium ring is almost coplanar with the open face of the carborane anion. The cations stack in the [010] direction and the dihedral angle between the imidazolium rings of adjacent cations is 68.45 (6)°. The butyl chains extend into the space between carborane anions.

Original languageEnglish
Pages (from-to)o183
Number of pages1
JournalActa Crystallographica Section E: Structure Reports Online
Issue number3
Early online date13 Feb 2015
Publication statusPublished - 1 Mar 2015

Bibliographical note

AL thanks Professor Maitland Jones for the generous donation of the starting orthocarborane stock and Dr John Holbrey for the supply of imidazolium halide reagents. The research
support by ACS PRF and Cottrell College awards (44692.01-GB and CC6755) is gratefully acknowledged.


  • Bridging B - H - B bond
  • Carborane cage anion
  • Crystal structure
  • Imidazolium cation


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