Cited by 338Laser-Matter Interactions and ApplicationsX-ray Spectroscopy and Fluorescence AnalysisAdvanced X-ray Imaging Techniques

Femtosecond x-ray spectroscopy of an electrocyclic ring-opening reaction

Attar, Andrew R., Bhattacherjee, Aditi, Pemmaraju, C. D., Schnorr, Kirsten, Closser, Kristina D., Prendergast, David, Leone, Stephen R.·2017·Science

Abstract

X-ray vision catches Woodward-Hoffmann: The celebrated Woodward-Hoffmann (W-H) rules rationalize a variety of rapid bond rearrangements in organic molecules. The key insight involved symmetry conservation in the electronic journey from reactant to product. Attar et al. now report femtosecond x-ray absorption spectra and accompanying simulation studies that track shifts in carbon electronic states during one such reaction: the photochemical ring opening of cyclohexadiene to hexatriene (see the Perspective by Sension). The smooth evolution that occurs in the vicinity of the pericyclic minimum provides direct affirmation of the W-H framework. Moreover, the use of a convenient tabletop apparatus bodes well for future x-ray studies of ultrafast electronic dynamics. Science , this issue p. 54 ; see also p. 31

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Crossref · 10.1126/science.aaj2198

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  • At photon energies up to 300 eV, the state-of-the-art in x-ray transient-absorption dynamics (based on femtosecond high harmonics) has been used to measure excited-state ring opening of cyclohexadiene.

    “At photon energies up to 300 eV, the state-ofthe-art in x-ray transient-absorption dynamics (based on femtosecond high harmonics) has been used to measure excited-state ring opening of cyclohexadiene [216] (figure 26)”

    From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [216]

  • X-ray fs identification of the key transition state labeled 2 A for ring opening of cyclohexadiene.

    “X-ray fs identification of the key transition state labeled 2 A, blue points, for ring opening of cyclohexadiene.”

    From Roadmap of ultrafast x-ray atomic and molecular physics (2018) · cites this paper as [216]

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Authors
Attar, A. R., Bhattacherjee, A., Pemmaraju, C. D., Schnorr, K., Closser, K. D., Prendergast, D., & Leone, S. R.
Affiliations
Lawrence Berkeley National Laboratory (US)
Corresponding author
Leone, Stephen R.
Venue
Science
Published
2017-04-07
Volume
356
Issue
6333
Pages
54-59
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2604515236
Cited by
338
References
63
Citations by year
2026: 21 · 2025: 21 · 2024: 31 · 2023: 30 · 2022: 38 · 2021: 51 · 2020: 51 · 2019: 40 · 2018: 42 · 2017: 12
FWCI
19.46
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • National Science Foundation (award299191, EEC-0310717)
  • U.S. Department of Energy (award299187, DE-AC02-05CH11231, award302135, DE-AC02-76SF00515)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
  • Physical Sciences › Physics and Astronomy › Radiation › X-ray Spectroscopy and Fluorescence Analysis
  • Physical Sciences › Physics and Astronomy › Radiation › Advanced X-ray Imaging Techniques
Keywords
electrocyclic ring opening, 1,3-cyclohexadiene, valence electronic structure, carbon K-edge, nonadiabatic relaxation, femtosecond dynamics

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