Monatshefte für Chemie / Chemical Monthly

, Volume 131, Issue 3, pp 251–265

Carbene Complexes of Pnictogen Pentafluorides and Boron Trifluoride

  • Anthony J. Arduengo III
  • Fredric Davidson
  • Roland Krafczyk
  • William J. Marshall
  • Reinhard Schmutzler

DOI: 10.1007/s007060070101

Cite this article as:
Arduengo III, A., Davidson, F., Krafczyk, R. et al. Monatshefte für Chemie (2000) 131: 251. doi:10.1007/s007060070101

Summary.

 Synthesis, characterization, and solid state X-ray crystallographic structures for 12-Pn-6 complexes derived from carbene 4,5-dichloro-1,3-dimesitylimidazol-2-ylidene and phosphorus, arsenic, or antimony pentafluoride are reported. The adducts show octahedral geometries at the pnictogen centers with C-Pn bond distances of 189.8 (P), 199.9 (As), and 217.5 (Sb) pm. The structures are those of internal zwitterions with imidazolium ion character in the heterocyclic ring and a pentafluoropnictanide anion bonded to C2. Adducts of BF3 with 1,3-dimesitylimidazol-2-ylidene and 4,5-dichloro-1,3-dimesitylimidazol-2-ylidene are also reported for comparison. Although the reactivity of chlorinated and non-chlorinated carbenes varies considerably, the spectroscopic and structural properties of analogous adducts are remarkably similar.

Keywords. Carbene; Pnictogen(V) fluorides; Boron(III) fluoride; Zwitterions; Imidazol-2-ylidene. 

Copyright information

© 2000 Springer-Verlag/ Wien

Authors and Affiliations

  • Anthony J. Arduengo III
    • 1
  • Fredric Davidson
    • 2
  • Roland Krafczyk
    • 1
  • William J. Marshall
    • 2
  • Reinhard Schmutzler
    • 1
  1. 1. Institut für Anorganische und Analytische Chemie der Technischen Universität Braunschweig, D-38023 Braunschweig, GermanyDE
  2. 2. DuPont Science and Engineering Laboratory, Experimental Station Wilmington, Delaware 19880-0328, USAUS

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