Threshold ionization spectroscopy and spin-orbit coupling of CeC3H4 and CeC3H4 formed in Ce + propene reaction
Zhang, Yuchen
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1492589.pptx
4067.pdf
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https://hdl.handle.net/2142/104485
Description
Title
Threshold ionization spectroscopy and spin-orbit coupling of CeC3H4 and CeC3H4 formed in Ce + propene reaction
Author(s)
Zhang, Yuchen
Contributor(s)
Yang, Dong-Sheng
Cao, Wenjin
Issue Date
2019-06-19
Keyword(s)
Ions
Date of Ingest
2019-07-15T22:17:01Z
2020-01-25T19:30:12Z
Abstract
CeC$_{3}$H$_{4}$ and CeC$_{3}$H$_{6}$ are observed in the reaction of Ce with propene in molecular beams and characterized by mass-analyzed threshold ionization (MATI) spectroscopy and relativistic quantum calculations. The MATI spectrum of each species displays two band systems, each consisting of vibronic progressions from Ce-C stretching and ligand bending excitations in the ionic states. The adiabatic ionization energies of CeC$_{3}$H$_{4}$ and CeC$_{3}$H$_{6}$ are 41035 (5) and 41868 (5) \wn, respectively. The two band systems are separated by 125 \wn for CeC$_{3}$H$_{4}$ and 60 \wn for CeC$_{3}$H$_{6}$. By comparing the splittings from the spectra with the relativistic calculations at the level of multiconfiguration quasi-degenerate second-order perturbation theory, we assign the two band systems to transitions from two spin-orbit levels of the neutral molecules.
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1492589.pptx
4067.pdf
