Evaluation of the interatomic potential and the interaction dipole moment of rare gas mixtures from their ir spectra

1977 ◽  
Vol 66 (11) ◽  
pp. 4943-4945 ◽  
Author(s):  
Ezra Bar‐Ziv
Keyword(s):  
Dipole Moment ◽  
Ir Spectra ◽  
Interatomic Potential ◽  
Gas Mixtures ◽  
Rare Gas ◽  
Interaction Dipole Moment

Theory of collision-induced translational absorption

1968 ◽  
Vol 46 (10) ◽  
pp. 1163-1172 ◽  
Author(s):  
V. F. Sears
Keyword(s):  
Dipole Moment ◽  
Line Shape ◽  
Shape Function ◽  
Interatomic Potential ◽  
Exponential Model ◽  
Rare Gas ◽  
Repulsive Core ◽  
Frequency Range ◽  
Induced Dipole ◽  
Binary Collisions

A theory of the line shape for collision-induced translational absorption in rare-gas mixtures is developed. The reduced line-shape function is expanded in terms of the quantity ρ/σ, typically of the order of 0.1, where ρ is the range of the induced dipole moment and σ is the size of the repulsive core of the interatomic potential. The calculation is based on the special properties of the exponential model for the induced electric dipole moment. The temperature is assumed to be sufficiently high that the motion of the atoms can be treated classically, while the density is assumed to be sufficiently low that only binary collisions are important and intercollisional correlation effects are negligible over the frequency range of interest. A least-squares comparison of theory with experiment yields values for ρ and the magnitude of the induced moment for Ne–Ar and He–Ar pairs.

On the Theory of Collision-Induced Absorption in Rare Gas Mixtures

1971 ◽  
Vol 49 (7) ◽  
pp. 837-847 ◽  
Author(s):  
S. L. Brenner ◽  
D. A. McQuarrie
Keyword(s):  
Absorption Spectrum ◽  
Dipole Moment ◽  
Far Infrared ◽  
Gas Mixtures ◽  
Moment Function ◽  
Rare Gas ◽  
Induced Absorption ◽  
Induced Dipole ◽  
Calculated Equilibrium

The observed far-infrared collision-induced absorption of helium–argon mixtures is used to determine the parameters in an induced-dipole moment function of the form[Formula: see text]It is shown that, with this form of μ(r), the values of the constants μo, ρ, and c7 that are necessary to fit the first two moments of the observed absorption contour are in disagreement with the available theoretical values of these constants. Possible explanations for this disagreement are discussed in the paper. Finally, it is shown that if μ(r) were known, it is possible to obtain an excellent representation of the entire absorption spectrum from a knowledge of only the first three moments, which are easily calculated equilibrium quantities.

Vibrational relaxation of BF3 in the range 182–473 K and in rare-gas mixtures at 295 K

1977 ◽  
Vol 52 (2) ◽  
pp. 219-223 ◽  
Author(s):  
R. Kadibelban ◽  
W. Janiesch ◽  
R. Ahrens-Botzong ◽  
P. Hess
Keyword(s):  
Vibrational Relaxation ◽  
Gas Mixtures ◽  
Rare Gas

Nuclear Magnetic Relaxation in Hydrogen—Rare Gas Mixtures

1972 ◽  
Vol 56 (6) ◽  
pp. 2632-2637 ◽  
Author(s):  
Kenneth R. Foster ◽  
John H. Rugheimer
Keyword(s):  
Magnetic Relaxation ◽  
Gas Mixtures ◽  
Nuclear Magnetic Relaxation ◽  
Rare Gas ◽  
Nuclear Magnetic

Solvent shifts and excited‐state potentials in rare‐gas mixtures

1974 ◽  
Vol 60 (7) ◽  
pp. 2800-2802 ◽  
Author(s):  
Michael J. Saxton ◽  
J. M. Deutch
Keyword(s):  
Excited State ◽  
Gas Mixtures ◽  
Rare Gas ◽  
Solvent Shifts

Ozone yields from the Febetron radiolysis of oxygen – rare gas mixtures

1977 ◽  
Vol 55 (2) ◽  
pp. 203-209 ◽  
Author(s):  
A. W. Boyd ◽  
O. A. Miller ◽  
E. B. Selkirk
Keyword(s):  
Excited State ◽  
Gas Mixtures ◽  
Rare Gas ◽  
Rare Gases

Ozone yields have been measured from the Febetron irradiation of mixtures containing 1–50 mol% oxygen and each of the five rare gases. The maximum values of G(O3) calculated using the energy absorbed only in the rare gas are obtained with the addition of less than 10% oxygen and are for: He, 16; Ne, 14; Ar, 11; Kr, 10; Xe, 12; each with an uncertainty of less than ±10%. On the addition of 0.2 mol% SF6 these yields are reduced to 6,5,1,2, and 2.5 respectively.These values are compared with those derived from ion and excited state yields and the contributions of subexcitation electrons.

IR Spectra and dipole moment function of the H2S molecule in the gas and liquid phases

2013 ◽  
Vol 7 (6) ◽  
pp. 721-733 ◽  
Author(s):  
Sh. Sh. Nabiev ◽  
L. A. Palkina ◽  
V. I. Starikov
Keyword(s):  
Dipole Moment ◽  
Ir Spectra ◽  
Moment Function ◽  
Liquid Phases

Thermal Conductivities of Rare Gas Mixtures

1960 ◽  
Vol 3 (3) ◽  
pp. 355 ◽  
Author(s):  
Edward A. Mason ◽  
Hans Von Ubisch
Keyword(s):  
Gas Mixtures ◽  
Rare Gas ◽  
Thermal Conductivities
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