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Showing 1–5 of 5 results
Advanced filters: Author: Kristjan Kunnus Clear advanced filters

  • Water-vapor interfaces have been studied with many techniques, yet open questions persist about their electronic and molecular structure. Here, the authors demonstrate the application of soft x-ray second harmonic generation to study the water surface by leveraging attosecond pulses at the LCLS and a flat liquid sheet microjet, providing insights on the H-bond structure.

    • David J. Hoffman
    • Shane W. Devlin
    • Jake D. Koralek
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-13

  • Reliably identifying transient intermediates is crucial to elucidate chemical reaction mechanisms. Here, the authors use femtosecond Fe Kβ main line and valence-to-core x-ray emission spectroscopy to characterize a short-lived intermediate of the aqueous ferricyanide photo-aquation reaction.

    • Marco Reinhard
    • Alessandro Gallo
    • Dimosthenis Sokaras
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-11

  • 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

  • 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