Cr L-Edge X-ray Absorption Spectroscopy of Cr^III(acac)₃ in Solution with Measured and Calculated Absolute Absorption Cross Sections.

ABSTRACT: X-ray absorption spectroscopy at the L-edge of 3d transition metals is widely used for probing the valence electronic structure at the metal site via 2p-3d transitions. Assessing the information contained in L-edge absorption spectra requires systematic comparison of experiment and theory. We here investigate the Cr L-edge absorption spectrum of high-spin chromium acetylacetonate Cr^III(acac)₃ in solution. Using a transmission flatjet enables determining absolute absorption cross sections and spectra free from X-ray-induced sample damage. We address the challenges of measuring Cr L absorption edges spectrally close to the O K absorption edge of the solvent. We critically assess how experimental absorption cross sections can be used to extract information on the electro

SUBMITTER: Kubin M 

PROVIDER: S-EPMC6426449 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature