Magnesium Reagents Featuring a 1,1′-Bis(o-carborane) Ligand Platform

Jonathan C. Axtell*, Kent O. Kirlikovali, Rafal M. Dziedzic, Milan Gembicky, Arnold L. Rheingold, Alexander M. Spokoyny

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


The synthesis of two bis(carboranyl) (bc) magnesium reagents is described. Treatment of 1,1′-bis(o-carborane) (H2-bc) or 8,8′,9,9′,10,10′,12,12′-octamethyl-1,1′-bis(o-carborane) (H2-Mebc) with Mg(nBu)2 in 1,2-dimethoxyethane (DME) affords (bc)Mg(DME)2 (1a,b) as crystalline solids. The magnesium compounds, which have been characterized by NMR spectroscopy and single-crystal X-ray crystallography in the case of 1a, serve as competent Grignard-type reagents to generate bc-containing species of tin from Me2SnCl2 (2a,b). The type of substitution of the bis(o-carboranyl) ligand framework is found to strongly affect the electronic character of the tin center, as judged by 119Sn NMR spectroscopy. The disclosed compounds, which are stable solids under an atmosphere of dry nitrogen gas at room temperature, provide a new class of bc-transfer reagents.

Original languageEnglish (US)
Pages (from-to)4411-4416
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Issue number38
StatePublished - Oct 25 2017


  • Boron
  • Carboranes
  • Cluster compounds
  • Electronic structure
  • Tin

ASJC Scopus subject areas

  • Inorganic Chemistry


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