Selective B-H versus N-H bond activation in ammonia borane by [Ir(dppm)<inf>2</inf>]OTf

Andrea Rossin, Maria Caporali, Luca Gonsalvi, Annalisa Guerri, Agustí Lledós, Maurizio Peruzzini, Fabrizio Zanobini

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40 Citations (Scopus)


Ammonia borane (AB, NH3-BH3) was activated selectively on the boron hydrogen atoms by [Ir(dppm)2]OTf, as shown by variable-temperature 31P, 11B and 1H NMR studies, to yield cis- and irans-[Ir(H)2(dppni)2] OTí dihydrides, X-ray crystal structures of these complexes were obtained. DFT calculations suggest: the key reaction intermediate to be a Lewis base (L) stabilised adduct, cis-[Ir(H) (BH2.L) (dppm) 2]+ © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
Original languageEnglish
Pages (from-to)3055-3059
JournalEuropean Journal of Inorganic Chemistry
Issue number21
Publication statusPublished - 1 Jul 2009


  • Boranes
  • Hydrogen storage
  • Iridium
  • NMR spectroscopy
  • P ligands


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