Preprint

PUBDB-2024-01328

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Molecular influence on nuclear-quadrupole coupling effects in laser induced alignment

Thesing, L. ; Yachmenev, A. (Corresponding author)CFEL*DESY* ; González-Férez, R. (Corresponding author) ; Küpper, J. (Corresponding author)CFEL*XFEL.EU*DESY*

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-01328

Report No.: arXiv:2408.01125

Abstract: We studied the effect of nuclear-quadrupole interactions on the field-free impulsive alignment of different asymmetric-top molecules. Our analysis is focused on the influence of the hyperfine- and rotational-energy-level structures. These depend on the number of nuclear spins, the rotational constants, and the symmetry of the tensors involved in the nuclear spin and external field interactions. Comparing the prototypical large-nuclear- spin molecules iodobenzene, 1,2-diiodobenzene, 1,3-diiodobenzene, and 2,5-diiodobenzonitrile, we demonstrate that the magnitude of the hyperfine splittings compared to the rotational-energy splittings plays a crucial role in the spin-rotational dynamics after the laser pulse. Moreover, we point out that the impact of the quadrupole coupling on the rotational dynamics decreases when highly excited rotational states dominate the dynamics.

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Contributing Institute(s):

1. CFEL-CMI (FS-CFEL-CMI)
2. beauftragt von UNI (UNI/CUI)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. DFG project G:(GEPRIS)255652344 - SPP 1840: Quantum Dynamics in Tailored Intense Fields (QUTIF) (255652344) (255652344)
3. DFG project G:(GEPRIS)194651731 - EXC 1074: Hamburger Zentrum für ultraschnelle Beobachtung (CUI): Struktur, Dynamik und Kontrolle von Materie auf atomarer Skala (194651731) (194651731)
4. AIM, DFG project G:(GEPRIS)390715994 - EXC 2056: CUI: Advanced Imaging of Matter (390715994) (390715994)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Thesing, L. ; Yachmenev, A. (Corresponding author)CFEL*DESY* ; González-Férez, R. (Corresponding author) ; Küpper, J. (Corresponding author)CFEL*XFEL.EU*DESY*
Molecular influence on nuclear-quadrupole coupling effects in laser induced alignment
The journal of chemical physics 161(12), 124115 (2024) [10.1063/5.0231814]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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