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

Babin, Mark C.

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

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

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