High-resolution Photodissociation Spectroscopy Of N₂o⁺

Roucou, Anthony

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https://hdl.handle.net/2142/111126 Copy

Description

Title

High-resolution Photodissociation Spectroscopy Of N₂o⁺

Author(s)

Roucou, Anthony

Contributor(s)

• Lauzin, Clément
• Urbain, Xavier

Issue Date

2021-06-24

Keyword(s)

Action spectroscopy (incl. PE, PD, PI, LIR)

Abstract

The nitrous oxide cation (N$_2$O$^+$) is an important intermediate in the upper atmosphere\footnote{G. Chambaud, H. Gritli, P. Rosmus, H. J. Werner, and P. J. Knowles, Mol. Phys. 98, 1793 (2000)}. The photodissociation spectra of N$_{2}$O$^{+}$ have been measured in the UV range using the new STARGATE instrument (Spectroscopy of Transient Anions and Radicals by Gated and Accelerated Time-of-flight Experiment) developped in UCLouvain. This talk will present the rovibronic analysis of the \~{A}$^{2}\Sigma^{+}(002)\leftarrow$\~{X}$^{2}\Pi(000)$, \~{A}$^{2}\Sigma^{+}(101)\leftarrow$\~{X}$^{2}\Pi(000)$ and \~{A}$^{2}\Sigma^{+}(003)\leftarrow$ \~{X}$^{2}\Pi(000)$ bands measured at 550 K in the 30500-32500 cm$^{-1}$ range. A global vibronic fit has been performed including these bands, Q-branch head of overtones, combination bands and data from other studies\footnote{M. Gharaibeh and D. Clouthier, J. Chem. Phys. 136, 044318 (2012).}\footnote{C. E. Fellows and M. Vervloet, Chem. Phys. 264, 203 (2001).}. The Renner-Teller effect involving the \~{X}$^{2}\Pi$ and \~{A}$^{2}\Sigma^{+}$ states is taken into account in the global fit procedure. The improvement of the description of the vibronic energy level will be discussed.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111126

DOI

10.15278/isms.2021.RM06

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