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Synthesis and characterisation of PCsp3P phosphine and phosphinite iridium complexes. Cyclometallation and dehydrogenation of a cyclohexyl ring.

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Author

  • Athimoolam Arunachalampillai
  • Daniel Olsson
  • Ola Wendt

Summary, in English

A cyclohexyl based pincer phosphine ligand undergoes cyclometalation with an iridium cyclooctadiene precursor to give a highly thermally stable iridium(III) complex where a C(sp3)-H bond has been oxidatively added. This iridium(III) hydride complex is reduced with potassium to give a terminal iridium(I) dinitrogen complex with no tendency to dimerization. The corresponding cyclohexyl phosphinite ligand undergoes reversible dehydrogenation to give the aromatic cyclometalated iridium(III) hydride complex together with 3 equivalents of dihydrogen.

Publishing year

2009

Language

English

Pages

8626-8630

Publication/Series

Dalton Transactions

Issue

40

Document type

Journal article

Publisher

Royal Society of Chemistry

Topic

  • Organic Chemistry

Status

Published

ISBN/ISSN/Other

  • ISSN: 1477-9234