Triple hydrogen atom abstraction from Mn-NH3 complexes results in cyclophosphazenium cations

Brian J. Cook, Samantha I. Johnson, Geoffrey M. Chambers, Werner Kaminsky, R. Morris Bullock

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


All hydrogen atoms of the NH3 in [Mn(depe)2(CO)(NH3)]+ are abstracted by 2,4,6-tri-tert-butylphenoxyl radical, resulting in the isolation of a rare cyclophosphazenium cation, [(Et2P(CH2)2PEt2)N]+, in 76% yield. An analogous reaction is observed for [Mn(dppe)2(CO)(NH3)]+. Computations suggest insertion of NHx into a Mn-P bond provides the thermodynamic driving force. Contextualization of this reaction provides insights on catalyst design and breaking strong N-H bonds.

Original languageEnglish
Pages (from-to)14058-14061
Number of pages4
JournalChemical Communications
Issue number93
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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