New analysis of the (A)over-tilde² Π_u - (X)over-tilde² Π_g electronic transition of the ¹²C¹⁶O₂⁺ molecule: Improved molecular constants and Renner-Teller parameters

Author(s)

Ventura, Laiz R. ; Santos, Alexandre E. ; Amorim, Jayr ; Fellows, Carlos E.

• Document type: Journal article
• Source: Chemical Physics Letters; v. 849, p. 7-pg., 2024-06-18.

Abstract

In this work, a new analysis of the transition (A) over tilde2 Pi(u) -> (X) over tilde (2) H-g of the CO2+ molecule was carried out by Fourier Transform spectroscopy. More accurate wavenumbers allowed the improvement of molecular constants and band origins, leading to more reliable values for molecular parameters. Particularly in the first three vibrational levels v(1)'00 of symmetric stretching, as well as in the vibrational levels 010 and 110, in the excited electronic state (A) over tilde (2) Pi(u). Combining with previously reported data, it was possible to calculate, for the first time, a complete set of Renner-Teller parameters for the ground electronic state (X) over tilde (2) Pi g. (AU)

• FAPESP's process: 23/08074-5 - New experimental and theoretical investigations about the molecular ion N2+
• Grantee: Laiz Rodrigues Ventura
• Support Opportunities: Scholarships in Brazil - Post-Doctoral