Far-infrared absorption in liquid carbon tetrachloride: A theoretical study of the lineshape and intensity

✍ Scribed by C.G. Joslin; C.G. Gray

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 354 KB
• Volume: 154
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85371-0

✦ Synopsis

Liquid carbon tetrachloride displays a far-infrared absorption spectrum which is primarily the result of collisional processes involving octapolar and bexadecapolar induction of dipole moments. These moments are modulated by both the rotational and translational motions of the CC4 molecules. The rotational motion is essentially free; to treat the more complicated many-body translational problem we apply information theory, which uses as input only spectral moments. We thus avoid assumptions concerning the system dynamics. At 295 K our computed absorption spectrum agrees well with experiment, both in shape and in absolute intensity.