| Zugriffsnummer | 46199 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Laser-induced electron diffraction of the ultrafast umbrella motion in ammonia |
| Autor(in); Institution |
Belsa, B.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN
Amini, K.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN; University of Warsaw, Department of Chemistry, Warsaw, POLAND
Liu, X.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN
Sanchez, A.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN
Steinle, T.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN
Steinmetzer, J.; Friedrich-Schiller-Universität Jena, Institute of Physical Chemistry and Abbe Center of Photonics, Jena, GERMANY
Le, A. T.; Missouri University of Science and Technology,Department of Physics, Rolla, Missouri, USA
Moshammer, R.; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Pfeifer, T.; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Ullrich, Joachim; Präsidium, P, PTB-Braunschweig; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Moszynski, R.; University of Warsaw, Department of Chemistry, Warsaw, POLAND
Lin, C. D.; J. R. Macdonald Laboratory, Kansas State University, Department of Physics, Manhattan, Kansas, USA
Gräfe, S.; Friedrich-Schiller-Universität Jena, Institute of Physical Chemistry and Abbe Center of Photonics, Jena, GERMANY
Biegert, J.; Institut de Ciencies Fotoniques (ICFO), The Barcelona Institute of Science and Technology, Castelldefels, Barcelona, SPAIN; ICREA, Barcelona, SPAIN
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| Quelle/Jahr | Structural Dynamics: 8 (2021) |
| Artikelnummer | 014301 |
| Availability | [online only] |
| ISSN | 2329-7778 |
| DOI | |
| Verlag | Melville, NY: American Institute of Physics (AIP) |
| Zusammenfassung | Visualizing molecular transformations in real-time requires a structural retrieval method with Angström spatial and femtosecond temporal atomic resolution. Imaging of hydrogen-containing molecules additionally requires an imaging method sensitive to the atomic positions of hydrogen nuclei, with most methods possessing relatively low sensitivity to hydrogen scattering. Laser-induced electron diffraction (LIED) is a table-top technique that can image ultrafast structural changes of gas-phase polyatomic molecules with sub-Angström and femtosecond spatiotemporal resolution together with relatively high sensitivity to hydrogen scattering. Here, we image the umbrella motion of an isolated ammonia molecule (NH3) following its strong-field ionization. Upon ionization of a neutral ammonia molecule, the ammonia cation (NH3+) undergoes an ultrafast geometrical transformation from a pyramidal (ΦHNH = 107°) to planar (ΦHNH = 120°) structure in approximately 8 femtoseconds. Using LIED, we retrieve anear-planar (ΦHNH = 117 ± 5°) field-dressed NH3+ molecular structure 7.8 - 9.8 femtoseconds after ionization. Our measured field-dressed NH3+ structure is in excellent agreement with our calculated equilibrium field-dressed structure using quantum chemical ab initio calculations. Supplementary material: https://aca.scitation.org/doi/suppl/10.1063/4.0000046/suppl_file/lied_nh3_supplementary_material.docx Correction note: This article was originally published online on 13 January 2021 with an affiliation for J. Ullrich, Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany, omitted. All online versions of the article were corrected on 13 May 2021. Belsa, K. Amini, X. Liu, A. Sanchez, T. Steinle, J. Steinmetzer, A. T. Le, R. Moshammer, T. Pfeifer, J. Ullrich, R. Moszynski, C. D. Lin, S. Gräfe, and J. Biegert, "Publisher's Note: “Laser-induced electron diffraction of the ultrafast umbrella motion in ammonia” [Struct. Dyn. 8, 014301 (2021)]", Structural Dynamics 8, 049901 (2021) https://doi.org/10.1063/4.0000117 |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
Zitierung
Belsa, B., Amini, K., Liu, X., Sanchez, A., Steinle, T., Steinmetzer, J., Le, A. T., Moshammer, R., Pfeifer, T., Ullrich, J., Moszynski, R., Lin, C. D., Gräfe, S., & Biegert, J. (2021). Laser-induced electron diffraction of the ultrafast umbrella motion in ammonia. Structural Dynamics, 8. https://doi.org/10.1063/4.0000046