Far Infrared Absorption in Liquefied Gases

Far Infrared Absorption in Liquefied Gases
Author: Michael Christopher Jones
Publisher:
Total Pages: 52
Release: 1970
Genre: Absorption spectra
ISBN:

Experimental results are given for the absorption coefficient of the liquids hydrogen (three para concentrations), nitrogen, oxygen, carbon monoxide, methane and argon in the wavenumber range 20-250/cm (40-500 milli micros).In addition, data for liquid hydrogen are given at wave numbers up to 600/cm (16.7 milli micros). The results are discussed in terms of the induced dipole, and, in the case of carbon monoxide, the permanent dipole.An indication of the way in which the data may be employed in calculations of thermal radiative transfer is made by calculation of the modified Planck mean absorption coefficient.(Author).

Binary Fluorides

Binary Fluorides
Author: Donald T. Hawkins
Publisher: Springer Science & Business Media
Total Pages: 250
Release: 2012-12-06
Genre: Science
ISBN: 1468461478

Coverage For some time, we have contemplated a comprehensive review of the structures and force fields of the binary fluorides. This bibliography of 1498 references marks the first step of that effort. We are pub lishing this material now rather than waiting until the review is complete some two years hence because we believe that the information already accumulated will be of immediate use to a broad spectrum of researchers. Anyone ambitious enough to read through all the articles on binary fluorides will find that the struc tures and force fields of many of these molecules are at present unknown. For example, it has not been clearly established to which point group(s) the lanthanide trifluorides should be assigned. There remain interesting problems relating to the role of Jahn-Teller and pseudo-Jahn-Teller distortions in some of the transition metal fluorides such as VF , MoF , ReF , and ReF , to name only a few. One s s 6 7 also finds fascinating examples of large-amplitude motions, or pseudorotations, as they are often called, in such molecules as XeF 6, I F 7, and PF 5' For those binary fluorides whose equilibrium geometries are precisely known, there still exists the problem of accurately determining the harmonic force field. In a few cases, most notably the Group VA trifluorides, there has been some attempt made at extracting the cubic and quartic contributions to the force field.