Fluoroarene Complexes with Small Bite Angle Bisphosphines: Routes to Amine–Borane and Aminoborylene Complexes

Annie L. Colebatch, Alasdair I. McKay, Nicholas A. Beattie, Stuart A. Macgregor, Andrew S. Weller

Research output: Contribution to journalArticle

9 Citations (Scopus)
23 Downloads (Pure)

Abstract

Fluoroarene complexes of the small bite angle bisphosphine Cy2PCH2PCy2 (dcpm) have been prepared: [Rh(dcpm)(η6-1,2-F2C6H4)][Al{OC(CF3)3}4] and [Rh(dcpm)(η6-1,2,3-F3C6H3)][Al{OC(CF3)3}4]. These complexes act as precursors to a previously inaccessible σ-amine–borane complex [Rh(dcpm)(η2-H3B·NMe3)][Al{OC(CF3)3}4] of a small bite-angle phosphine. This complex is a poor catalyst for the dehydrocoupling of H3B·NMe2H. Instead, formation of the bridging borylene complex [{RhH(µ-dcpm)}2(µ-H)(µ-BNMe2)][Al{OC(CF3)3}4] occurs, which has been studied by NMR, mass spectrometry, crystallographic and DFT techniques. This represents a new route to bridging borylene complexes.

Original languageEnglish
Pages (from-to)4533-4540
Number of pages8
JournalEuropean Journal of Inorganic Chemistry
Volume2017
Issue number38-39
Early online date4 Aug 2017
DOIs
Publication statusPublished - 25 Oct 2017

Keywords

  • Amines
  • Boranes
  • Fluoroarenes
  • Phosphines
  • Rhodium

ASJC Scopus subject areas

  • Inorganic Chemistry

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