Alkyl dehydrogenation in a Rh(I) complex via an isolated agostic intermediate

Adrian B. Chaplin, Amalia I. Poblador-Bahamonde, Hazel A. Sparkes, Judith A. K. Howard*, Stuart A. Macgregor, Andrew S. Weller

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

38 Citations (Scopus)

Abstract

A well-characterised 14-electron rhodium phosphine complex, [Rh((PPr3)-Pr-i)(3)][BAr4F], which contains a beta-CH agostic interaction, is observed to undergo spontaneous dehydrogenation to afford [Rh((PPr3)-Pr-i)(2)((PPr2)-Pr-i(C3H5))][BAr4F]; calculations on a model system show that while C-H activation is equally accessible from the beta-CH agostic species or an alternative gamma-CH agostic isomer, subsequent beta-H-transfer can only be achieved along pathways originating from the beta-CH agostic form.

Original languageEnglish
Pages (from-to)244-246
Number of pages3
JournalChemical Communications
Issue number2
DOIs
Publication statusPublished - 2009

Keywords

  • C-H ACTIVATION
  • RHODIUM COMPLEXES
  • REACTIVITY
  • BOND
  • METAL
  • MIGRATION
  • CATALYSTS
  • LIGANDS
  • IR(III)

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