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Showing 1–5 of 5 results
Advanced filters: Author: Robert W. Hartsock Clear advanced filters

  • The dissociation mechanism of the heme axial ligand in heme proteins is not yet fully understood. The authors investigate the photodissociation dynamics of the bond between heme Fe and methionine S in ferrous cytochrome c using femtosecond time-resolved X-ray solution scattering and X-ray emission spectroscopy, simultaneously tracking electronic and nuclear structure changes.

    • Marco E. Reinhard
    • Michael W. Mara
    • Kelly J. Gaffney
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • Interactions between reactive excited states of molecular photocatalysts and surrounding solvent can dictate reaction pathways, but are not readily accessible to conventional spectroscopic methods. Here the authors use diffuse X-ray scattering and theory to study the atomistic solvation dynamics of a photoexcited di-iridium complex in acetonitrile.

    • Tim B. van Driel
    • Kasper S. Kjær
    • Kelly J. Gaffney
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7

  • Photoinduced non-adiabatic intramolecular processes have important applications but their mechanisms are challenging to explore. Here the authors detect and assign vibrational wavepacket dynamics in a Fe carbene complex by ultrafast X-ray emission spectroscopy and X-ray scattering, resolving nuclear and electronic motion.

    • Kristjan Kunnus
    • Morgane Vacher
    • Kelly J. Gaffney
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-11

  • Femtosecond resolution X-ray fluorescence spectroscopy is shown to track the charge and spin dynamics triggered when an iron coordination complex is excited by light, and establishes the critical role of intermediate spin states in the de-excitation process.

    • Wenkai Zhang
    • Roberto Alonso-Mori
    • Kelly J. Gaffney
    Research
    Nature
    Volume: 509, P: 345-348