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Title:High-resolution Photodissociation Spectroscopy Of N2o+
Author(s):Roucou, Anthony
Contributor(s):Lauzin, Clément; Urbain, Xavier
Subject(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.
Issue Date:2021-06-24
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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