Jump to main content
Jump to site search

Issue 16, 2011
Previous Article Next Article

Synthesis and coordination chemistry of organoiridium complexes supported by an anionic tridentate ligand

Author affiliations

Abstract

Treatment of deprotonated N-(dimethylaminoethyl)-2-diphenylphosphinoaniline with bis(cyclooctene)iridium chloride dimer affords a thermally stable iridium(I) olefin complex. Infrared analysis of the corresponding monocarbonyl iridium(I) compound indicates a relatively electron rich metal center. Reaction of the iridium(I) cyclooctene complex with iodomethane effects oxidation of the metal yielding a five-coordinate iridium(III) methyl iodide complex which reversibly coordinates tetrahydrofuran. X-ray crystallography confirms coordination of ether to the iridium(III) methyl iodide complex and NMR spectroscopic experiments establish an equilibrium constant of 1.66(9) M for tetrahydrofuran binding. A five-coordinate iridium(III) dimethyl complex has also been prepared and characterized by X-ray diffraction. Hydrogenolysis of the dialkyl species permits identification of a short-lived classical iridium(III) dihydride complex.

Graphical abstract: Synthesis and coordination chemistry of organoiridium complexes supported by an anionic tridentate ligand

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Jan 2011, accepted on 15 Feb 2011 and first published on 11 Mar 2011


Article type: Paper
DOI: 10.1039/C1DT10037H
Citation: Dalton Trans., 2011,40, 4300-4306
  •   Request permissions

    Synthesis and coordination chemistry of organoiridium complexes supported by an anionic tridentate ligand

    N. G. Leonard, P. G. Williard and W. H. Bernskoetter, Dalton Trans., 2011, 40, 4300
    DOI: 10.1039/C1DT10037H

Search articles by author

Spotlight

Advertisements