Issue 19, 1976

Magnetic circular dichroism spectra of bis(η-cyclopentadienyl)-iron and-ruthenium

Abstract

The electronic and magnetic circular dichroism (m.c.d.) spectra of the title compounds, ferrocene and ruthenocene, have been measured in solution. Perspex films, and inert-gas matrices. Extensive calculations of the m.c.d. parameters for the dd transitions, assuming a vibronic mechanism, are reported. The results of these calculations predict that the dd transition should be dominated by A terms with only very weak B terms. However experimentally, the m.c.d. spectra show very strong B terms with only one weak A term of the opposite sign to that expected from the calculations. The experimental results are most reasonably explained by inclusion of significant ligand character into the d orbitals.

Article information

Article type
Paper

J. Chem. Soc., Dalton Trans., 1976, 1948-1954

Magnetic circular dichroism spectra of bis(η-cyclopentadienyl)-iron and-ruthenium

T. J. Barton, I. N. Douglas, R. Grinter and A. J. Thomson, J. Chem. Soc., Dalton Trans., 1976, 1948 DOI: 10.1039/DT9760001948

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