Ab-initio investigation of Br-3d core-excited electronic structures of HBr and HBr+

dc.contributor.authorKobayashi, Yuki
dc.contributor.authorZeng, Tao
dc.contributor.authorNeumark, Daniel M.
dc.contributor.authorLeone, Stephen
dc.date.accessioned2020-04-17T20:40:34Z
dc.date.available2020-04-17T20:40:34Z
dc.date.issued2019-01-30
dc.description.abstractUltrafast X-ray absorption spectroscopy is a powerful tool for real-time probing of chemical dynamics. Interpretation of the time-resolved absorption spectra requires knowledge of core-excited potentials, which necessitates assistance from high-level electronic-structure computations. In this study, we investigate Br-3d core-excited electronic structures of hydrogen bromide (HBr) using the spin-orbit general multiconfigurational quasidegenerate perturbation theory (SO-GMC-QDPT). Core-to-valence excitation energies and transition dipole moments are computed as functions of the internuclear distance for five electronic states of HBr (1Σ0+ , 3Π1, 1Π1, 3Π0+ , 3Π1) and two electronic states of HBr+ (2Π3/2, 2Σ1/2). The results illustrate the capabilities of the Br-3d edge probing to capture transitions of electronic-state symmetry as well as nonadiabatic dissociation processes evolving across avoided crossings. Furthermore, core-to-valence absorption spectra are simulated from the neutral and ionic ground states by numerically solving the time-dependent Schrodinger equation, which exhibit an excellent agreement with an experimental spectrum. The calculated comprehensive and quantitative picture of the core-excited potentials allows for transparent analyses of the core-to-valence absorption signals, filling the gap in the theoretical understanding of the Br-3d absorption spectra.en_US
dc.identifier.citationStructural Dynamics 6 (2019): 014101.en_US
dc.identifier.urihttps://doi.org/10.1063/1.5085011en_US
dc.identifier.urihttps://hdl.handle.net/10315/37196
dc.language.isoenen_US
dc.publisherAIP Publishingen_US
dc.rights.articlehttps://aca.scitation.org/doi/10.1063/1.5085011en_US
dc.rights.journalhttps://aca.scitation.org/journal/sdyen_US
dc.rights.publisherhttps://aip.scitation.org/en_US
dc.titleAb-initio investigation of Br-3d core-excited electronic structures of HBr and HBr+en_US
dc.title.alternativeAb initio investigation of Br-3d core-excited states in HBr and HBr+ toward XUV probing of photochemical dynamicsen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
HBr_ver6.pdf
Size:
719.97 KB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.83 KB
Format:
Item-specific license agreed upon to submission
Description: