Second order infrared absorption spectrum of carbon dioxide in the condensed phase
-
Published:1982-03-01
Issue:3
Volume:60
Page:314-320
-
ISSN:0008-4204
-
Container-title:Canadian Journal of Physics
-
language:en
-
Short-container-title:Can. J. Phys.
Author:
Umapathy S.,Krishnamurthy N.
Abstract
Solid carbon dioxide crystallizes in the space group [Formula: see text] with four molecules in the primitive unit cell. In the infrared absorption spectra of solid CO2 Mannik and Allin have observed extensive second order features involving combinations of the intermolecular vibrations with the components of the Fermi doublet (ν1, 2ν2) at 88 and 150 K. In the present investigation an interpretation of these second order infrared absorption spectra is carried out employing the rigid ion model of Powell et al. in the framework of external mode formalism and Stephen's theory of the two phonon infrared absorption. Reasonable agreement is observed in the phonon branches along the symmetry directions in our rigid molecule approximation and also in the observed infrared absorption spectra.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献