Photoelectron Spectroscopic Study On Dipole-bound States: Intramolecular Electric Field Induced Electronic Correlation

Yuan, Daofu

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https://hdl.handle.net/2142/116607 Copy

Description

Title

Photoelectron Spectroscopic Study On Dipole-bound States: Intramolecular Electric Field Induced Electronic Correlation

Author(s)

Yuan, Daofu

Contributor(s)

• Wang, Lai-Sheng
• Zhang, Yue-Rou

Issue Date

2022-06-22

Keyword(s)

Mini-symposium: Spectroscopy meets Chemical Dynamics

Abstract

Polar molecules with sufficiently large dipole moments can form highly diffuse dipole-bound anions. Dipole-bound anions possess noncovalent dipole-bound states (DBSs) just below the detachment threshold by the long-range electron-dipole interaction. The diffuse electron in a DBS is spatially well separated from the valence electrons and is known to have negligible effects on the DBS’s molecular structure. Electron correlation effects between the distant dipole-bound electron and the valence electrons of the neutral cores are known to be important for the accurate calculation of the binding energies of the dipole-bound electron. However, how the oriented intramolecular electric field of the dipole-bound electron influences the valence electrons has not been examined. We present the observation of a DBS in deprotonated 4-(2-phenylethynyl)-phenoxide anions. The photodetachment of the dipole-bound electron is observed to accompany a simultaneous shakeup process in valence orbitals in this aromatic molecular anion. This shakeup process is due to configuration mixing as a result of valence orbital polarization by the intramolecular electric field of the dipole-bound electron.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116607&&

DOI

https://doi.org/10.15278/isms.2022.WA02

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Copyright 2022 held by the authors

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