Diode laser spectroscopy of the CO2+ ν3 band using magnetic field modulation of the discharge plasma

1 February 1985

journal article
research article
Published by AIP Publishing in The Journal of Chemical Physics

Vol. 82 (3), 1174-1177
https://doi.org/10.1063/1.448489

Abstract

The ν₃ fundamental band of CO₂⁺ has been observed with infrared diode laser spectroscopy, while modulating a hollow cathode discharge in CO₂ by a magnetic field. The band origin has been determined to be 1423.0821(8) cm⁻¹. This anomalously low value has been explained in terms of a vibronic interaction between X̃ ²Π_g and Ã ²Π_u through the ν₃ vibration, as in the case of BO₂.

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