title: Shrinking the Synchrotron: Tabletop Extreme Ultraviolet Absorption of Transition-Metal Complexes.
abstract: We show that the electronic structure of molecular first-row transition-metal complexes can be reliably measured using tabletop high-harmonic XANES at the metal M2,3 edge. Extreme ultraviolet photons in the 50-70 eV energy range probe 3p → 3d transitions, with the same selection rules as soft X-ray L2,3-edge absorption (2p → 3d excitation). Absorption spectra of model complexes are sensitive to the electronic structure of the metal center, and ligand field multiplet simulations match the shapes and peak-to-peak spacings of the experimental spectra. This work establishes high-harmonic spectroscopy as a powerful tool for studying the electronic structure of molecular inorganic, bioinorganic, and organometallic compounds.
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Kaili
authors: K
authors: Zhang
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Ming-Fu
authors: MF
authors: Lin
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Elizabeth S
authors: ES
authors: Ryland
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Max A
authors: MA
authors: Verkamp
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Kristopher
authors: K
authors: Benke
authors: Department of Chemistry, Utrecht University , 3584 CG Utrecht, The Netherlands.
authors: Frank M F
authors: FM
authors: de Groot
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Gregory S
authors: GS
authors: Girolami
authors: Department of Chemistry, University of Illinois at Urbana-Champaign , Champaign 61801, United States.
authors: Josh
authors: J
authors: Vura-Weis