University of Illinois Urbana-Champaign

Experimental evidence of the ν3 mode in NO3 via slow photoelectron velocity-map imaging of cold NO3−

Babin, Mark C.

Content Files
1395701.pptx
3803.pdf

Permalink

https://hdl.handle.net/2142/104265

Description

Title
Experimental evidence of the ν3 mode in NO3 via slow photoelectron velocity-map imaging of cold NO3−
Author(s)
Babin, Mark C.
Contributor(s)
  • Neumark, Daniel
  • Stanton, John F.
  • DeVine, Jessalyn A.
Issue Date
2019-06-18
Keyword(s)
Radicals
Date of Ingest
  • 2019-07-15T22:16:32Z
  • 2020-01-25T19:30:19Z
Abstract
"With five electronic states within 2 eV, the nitrate radical (NO$_3$) has a rich vibronic landscape for which photoelectron spectroscopy is an ideal probe. Here, we use slow photoelectron velocity map imaging of cryogenically cooled anions (cryo-SEVI), a high-resolution variant of anion photoelectron spectroscopy, to investigate the vibronic structure of the $\tilde{X}^2A'_2$ state of NO$_3$. Our cryo-SEVI spectra are in excellent agreement with Franck-Condon simulations produced using a three-state K\""{o}ppel-Domke-Cederbaum (KDC) Hamiltonian constructed for the NO$_3$ radical. Together, the experimental and simulated spectra provide clear evidence that the $\nu_3$ fundamental resides near 1060 cm$^{-1}$, resolving a long-standing controversy surrounding this vibrational fundamental. Further, the appearance of activity along the $\nu_4$ mode in this cryogenically-cold system verifies its activity through a Herzberg-Teller interaction, rather than as a hot band as previously suggested."
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/104265
DOI
https://doi.org/10.15278/isms.2019.TD06
Copyright and License Information
Copyright 2019 Mark C. Babin

Owning Collections

Abstracts & Presentations - 2019 International Symposium on Molecular Spectroscopy PRIMARY