> Details

Kunnus, Kristjan; Vacher, Morgane; Harlang, Tobias C. B.; Kjær, Kasper S.; Haldrup, Kristoffer; Biasin, Elisa; van Driel, Tim B.; Pápai, Mátyás; Chabera, Pavel; Liu, Yizhu; Tatsuno, Hideyuki; Timm, Cornelia; Källman, Erik; Delcey, Mickaël; Hartsock, Robert W.; Reinhard, Marco E.; Koroidov, Sergey; Laursen, Mads G.; Hansen, Frederik B.; Vester, Peter; Christensen, Morten; Sandberg, Lise; Németh, Zoltán; Szemes, Dorottya Sárosiné; [...]

Vibrational wavepacket dynamics in Fe carbene photosensitizer determined with femtosecond X-ray emission and scattering

Reference
management

Bookmarks

Remove from
bookmarks

Share this on Whatsapp

Close

Bookmarks



You can manage bookmarks using lists, please log in to your user account for this.
  • Media type: E-Article
  • Title: Vibrational wavepacket dynamics in Fe carbene photosensitizer determined with femtosecond X-ray emission and scattering
  • Contributor: Kunnus, Kristjan; Vacher, Morgane; Harlang, Tobias C. B.; Kjær, Kasper S.; Haldrup, Kristoffer; Biasin, Elisa; van Driel, Tim B.; Pápai, Mátyás; Chabera, Pavel; Liu, Yizhu; Tatsuno, Hideyuki; Timm, Cornelia; Källman, Erik; Delcey, Mickaël; Hartsock, Robert W.; Reinhard, Marco E.; Koroidov, Sergey; Laursen, Mads G.; Hansen, Frederik B.; Vester, Peter; Christensen, Morten; Sandberg, Lise; Németh, Zoltán; Szemes, Dorottya Sárosiné; [...]
  • imprint: Springer Science and Business Media LLC, 2020
  • Published in: Nature Communications
  • Language: English
  • DOI: 10.1038/s41467-020-14468-w
  • ISSN: 2041-1723
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:p>The non-equilibrium dynamics of electrons and nuclei govern the function of photoactive materials. Disentangling these dynamics remains a critical goal for understanding photoactive materials. Here we investigate the photoinduced dynamics of the [Fe(bmip)<jats:sub>2</jats:sub>]<jats:sup>2+</jats:sup> photosensitizer, where bmip = 2,6-bis(3-methyl-imidazole-1-ylidine)-pyridine, with simultaneous femtosecond-resolution Fe Kα and Kβ X-ray emission spectroscopy (XES) and X-ray solution scattering (XSS). This measurement shows temporal oscillations in the XES and XSS difference signals with the same 278 fs period oscillation. These oscillations originate from an Fe-ligand stretching vibrational wavepacket on a triplet metal-centered (<jats:sup>3</jats:sup>MC) excited state surface. This <jats:sup>3</jats:sup>MC state is populated with a 110 fs time constant by 40% of the excited molecules while the rest relax to a <jats:sup>3</jats:sup>MLCT excited state. The sensitivity of the Kα XES to molecular structure results from a 0.7% average Fe-ligand bond length shift between the 1 s and 2p core-ionized states surfaces.</jats:p>
  • Access State: Open Access