Cooperative or Oxidative Hydrogen Addition to 2-Hydroxypyridonate Iridium Complexes: Dependence on Oxidation State

Sebastian J.K. Forrest, Seetharaman Manojveer, Magnus T. Johnson

Research output: Contribution to journalArticlepeer-review

Abstract

Iridium(III)–pyridone complexes are commonly found to react in a cooperative and redox-neutral manner with dihydrogen and alcohols. In this work, the reactivity preferences of IrI–pyridone complexes were investigated under a variety of conditions. We have found that, in contrast to IrIII–pyridones, IrI–pyridone complexes display a strong preference to react non-cooperatively. With a new chelating 2-hydroxy-8-diphenylphosphinoquinoline ligand that does not dissociate after hydrogen addition, oxidative addition is still preferred. In the preparation of mono- and bidentate neutral and anionic pyridone ligands, Vaska's complex was used as a point of reference. We expect these findings to have implications for catalyst development in the field of metal–ligand cooperation.

Original languageEnglish
Pages (from-to)3239-3243
Number of pages5
JournalEuropean Journal of Inorganic Chemistry
Volume2017
Issue number26
DOIs
Publication statusPublished - 2017 Jul 17

Subject classification (UKÄ)

  • Inorganic Chemistry

Free keywords

  • Hydrides
  • Iridium
  • Metal–ligand cooperation
  • N ligands

Fingerprint

Dive into the research topics of 'Cooperative or Oxidative Hydrogen Addition to 2-Hydroxypyridonate Iridium Complexes: Dependence on Oxidation State'. Together they form a unique fingerprint.

Cite this