Inorganic Triphenylphosphine

Adam D. Gorman, Jonathan A. Bailey, Natalie Fey, Tom A. Young, Hazel A. Sparkes, Paul G. Pringle*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

5 Citations (Scopus)
166 Downloads (Pure)


A completely inorganic version of one of the most famous organophosphorus compounds, triphenylphosphine, has been prepared. A comparison of the crystal structures of inorganic triphenylphosphine, PBaz3 (where Baz=B3H2N3H3) and PPh3 shows that they have superficial similarities and furthermore, the Lewis basicities of the two compounds are remarkably similar. However, their oxygenation and hydrolysis reactions are starkly different. PBaz3 reacts quantitatively with water to give PH3 and with the oxidizing agent ONMe3 to give the triply-O-inserted product P(OBaz)3, an inorganic version of triphenyl phosphite; a corresponding transformation with PPh3 is inconceivable. Thermodynamically, what drives these striking differences in the chemistry of PBaz3 and PPh3 is the great strength of the B−O bond.

Original languageEnglish
Pages (from-to)15802-15806
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number48
Early online date12 Oct 2018
Publication statusPublished - 26 Nov 2018


  • boron
  • inorganic chemistry
  • main group elements
  • phosphorus
  • structure elucidation

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