Comparison of X-ray photoelectron spectroscopy multiplet splitting of Cr 2p peaks from chromium tris(β-diketonates) with chemical effects

Synopsis and pictogram for Table of contents The Cr 2p3/2 peaks obtained from X-ray photoelectron spectra (XPS) of a series of chromium(III) β-diketonato complexes were fitted with calculated multiplet peaks. The ratio of the fac and mer isomers obtained from XPS compared very well with the Boltzmann calculated ratio. The electronegativity of the R-groups on the β-diketonato ligand influences the XPS peak positions.