Collision-Induced Absorption in the CO2 Fermi Triad for Temperatures From 211 K to 296 K

Published

July 1, 2003

Author(s)

Y I. Baranov, Gerald T. Fraser, Walter J. Lafferty, A A. Vigasin

Abstract

Absorption spectra of pure CO₂ have been recorded in the vicinity of the 2675 cm^-1 Fermi triad for temperatures between 211 K and 296 K. The 2υ₁, υ₁ + 2υ₂, 2υ₂ collision-induced components have been extracted from the measured spectra, including for the low frequency band at 2547 cm^-1, which is strongly masked by the υ3 wing absorption. Dimeric features are clearly seen on top of the structureless profiles. Integrated intensities of the Fermi-triad components are determined as a function of temperature.

Proceedings Title

NATO Advanced Research Workshop on Weakly Interacting Molecular Paires: Unconventional Absorbers of Radiation in the Atmoshpere | |

Volume

27

Conference Dates

April 1, 2002

Conference Location

Fontevraud, 1, FR

Conference Title

NATO Science Series

Pub Type

Conferences

Keywords

carbon dioxide, collision-induced absorption, continuum absorption, dimmer, infrared, spectroscopy

Citation

Baranov, Y. , Fraser, G. , Lafferty, W. and Vigasin, A. (2003), Collision-Induced Absorption in the CO₂ Fermi Triad for Temperatures From 211 K to 296 K, NATO Advanced Research Workshop on Weakly Interacting Molecular Paires: Unconventional Absorbers of Radiation in the Atmoshpere | |, Fontevraud, 1, FR (Accessed October 15, 2025)