Cited by 62Laser-Matter Interactions and ApplicationsSpectroscopy and Quantum Chemical StudiesAdvanced X-ray Imaging Techniques

Monitoring nonadiabatic avoided crossing dynamics in molecules by ultrafast X-ray diffraction

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Kowalewski, Markus, Bennett, Kochise, Mukamel, Shaul·2017·Structural Dynamics

Abstract

We examine time-resolved X-ray diffraction from molecules in the gas phase which undergo nonadiabatic avoided-crossing dynamics involving strongly coupled electrons and nuclei. Several contributions to the signal are identified, representing (in decreasing strength) elastic scattering, contributions of the electronic coherences created by nonadiabatic couplings in the avoided crossing regime, and inelastic scattering. The former probes the charge density and delivers direct information on the evolving molecular geometry. The latter two contributions are weaker and carry spatial information through the transition charge densities (off-diagonal elements of the charge-density operator). Simulations are presented for the nonadiabatic harpooning process in the excited state of sodium fluoride.

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Crossref · 10.1063/1.4984241

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  • Transition charge densities are associated with electronic and vibrational coherence and carry additional dynamical information about electronic excitations and their delocalization.

    “The latter, known as transition charge densities, are associated with electronic and vibrational coherence and carry additional dynamical information about electronic excitations and their delocalization [44].”

    From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [44]

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Research works printed but not linked: 3

  1. [2]J. Als-Nielsen and D. McMorrow, in Elements of Modern X-ray Physics (Wiley, Hoboken, 2011).
  2. [20]A. McPherson, Crystallization of Biological Macromolecules (Cold Spring Harbor Laboratory Press, 1999).
  3. [31]W. Domcke, D. R. Yarkony, and H. Köppel, Conical Intersections (World Scientific, 2011), Vol. 17.

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Authors
Kowalewski, M., Bennett, K., & Mukamel, S.
Affiliations
University of California, Irvine (US)
Venue
Structural Dynamics
Published
2017-05-26
Volume
4
Issue
5
Pages
054101-054101
ISSN
2329-7778 (ISSN-L)
OpenAlex
W2612164778
Cited by
62
References
47
Citations by year
2026: 1 · 2025: 4 · 2024: 7 · 2023: 4 · 2022: 6 · 2021: 7 · 2020: 7 · 2019: 12 · 2018: 9 · 2017: 4
FWCI
4.29
Type
journal article
Language
en
Open access
Locations
  • Structural Dynamics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • U.S. Department of Energy (DE-FG02-04ER15571)
  • Alexander von Humboldt-Stiftung (Feodor Lynen Program)
  • National Institutes of Health
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
  • Physical Sciences › Physics and Astronomy › Radiation › Advanced X-ray Imaging Techniques
Keywords
ultrafast X-ray diffraction, time-resolved X-ray diffraction, nonadiabatic coupling, electronic coherence, harpooning, sodium fluoride, transition density, inelastic scattering, gas-phase molecules, molecular dynamics

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