TY  - JOUR
AU  - Thesing, Linda
AU  - Yachmenev, Andrey
AU  - González-Férez, Rosario
AU  - Küpper, Jochen
TI  - Molecular influence on nuclear-quadrupole coupling effects in laser induced alignment
JO  - The journal of chemical physics
VL  - 161
IS  - 12
SN  - 0021-9606
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PUBDB-2024-01304
M1  - arXiv:2408.01125
SP  - 124115
PY  - 2024
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 39329310
UR  - <Go to ISI:>//WOS:001322286800005
DO  - DOI:10.1063/5.0231814
UR  - https://bib-pubdb1.desy.de/record/605046
ER  -