Abstract
Magnetic resonance spectra are described for two compounds containing covalently bound [IrCl 6 ] 2- complexes and one containing [IrBr 6 ] 2- , and the results are analyzed using the π-bonding theory developed by Stevens. The spectra show hyperfine structure lines arising from interaction of the magnetic electrons both with the Ir nucleus ( I = 3/2) and w ith the Cl ( I = 3/2) or Br ( I = 3/2) nuclei, and different examples are discussed where the numbers of resolved lines are 4, 8, 13, 16 and 22. It is shown how these structures, the ( g -values and the difference between the spectra in [IrCl 6 ] 2- and [IrBr 6 ] 2- are all consistent with the hypothesis that the magnetic electrons move partly in d -orbits round the central Ir nucleus and partly in p π-orbits round the outer halogen nuclei of the complex.
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Schedule a callMore From: Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
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