Absorption coefficient of alkali halides in the multiphonon regime: Effects of nonlinear dipole moments

1974 ◽  
Vol 10 (4) ◽  
pp. 1713-1724 ◽  
Author(s):  
D. L. Mills ◽  
A. A. Maradudin
Keyword(s):  
Absorption Coefficient ◽  
Dipole Moments ◽  
Alkali Halides

THEORY OF TRANSLATIONAL ABSORPTION IN GASES

1961 ◽  
Vol 39 (1) ◽  
pp. 189-204 ◽  
Author(s):  
J. D. Poll ◽  
J. Van Kranendonk
Keyword(s):  
Absorption Coefficient ◽  
Infrared Absorption ◽  
Dipole Moments ◽  
Gas Mixtures ◽  
Absorption Coefficients ◽  
Monatomic Gas

The theory of translational infrared absorption in gases is developed. Invariant expressions for the integrated absorption coefficients are derived. The absorption coefficients are expanded in powers of the density, and the binary absorption coefficients are expressed in terms of a model for the induced pair dipole moments. Monatomic gas mixtures, diatomic gases, and diatomic–monatomic gas mixtures are considered in detail. As an application the binary absorption coefficient of the translational band of hydrogen is calculated.

The Dipole Moments of the Alkali Halides

1936 ◽  
Vol 4 (6) ◽  
pp. 372-376 ◽  
Author(s):  
W. H. Rodebush ◽  
L. A. Murray ◽  
M. E. Bixler
Keyword(s):  
Dipole Moments ◽  
Alkali Halides

The Dipole Moments of the Alkali Halides

1936 ◽  
Vol 4 (8) ◽  
pp. 536-536 ◽  
Author(s):  
W. H. Rodebush
Keyword(s):  
Dipole Moments ◽  
Alkali Halides

Electronic polarizabilities and dipole moments for alkali halides

1989 ◽  
Vol 90 (2) ◽  
pp. 1061-1066 ◽  
Author(s):  
A. A. S. Sangachin ◽  
J. Shanker
Keyword(s):  
Dipole Moments ◽  
Alkali Halides

Is there a “universal” MAC equation?

1990 ◽  
Vol 48 (2) ◽  
pp. 228-229
Author(s):  
Robert E. Ogilvie
Keyword(s):  
Absorption Coefficient ◽  
Atomic Absorption ◽  
Atomic Number ◽  
X Ray ◽  
Time Period ◽  
Image Position

The search for an empirical absorption equation begins with the work of Siegbahn (1) in 1914. At that time Siegbahn showed that the value of (μ/ρ) for a given element could be expressed as a function of the wavelength (λ) of the x-ray photon by the following equationwhere C is a constant for a given material, which will have sudden jumps in value at critial absorption limits. Siegbahn found that n varied from 2.66 to 2.71 for various solids, and from 2.66 to 2.94 for various gases.Bragg and Pierce (2) , at this same time period, showed that their results on materials ranging from Al(13) to Au(79) could be represented by the followingwhere μa is the atomic absorption coefficient, Z the atomic number. Today equation (2) is known as the “Bragg-Pierce” Law. The exponent of 5/2(n) was questioned by many investigators, and that n should be closer to 3. The work of Wingardh (3) showed that the exponent of Z should be much lower, p = 2.95, however, this is much lower than that found by most investigators.

Dipole moments and tautomeric equilibria of some aroylacetanilides

1981 ◽  
Vol 78 ◽  
pp. 155-159 ◽  
Author(s):  
Magdi M. Naoum ◽  
Hakim G. Shinouda ◽  
Ahmed S. Shawali ◽  
Hanna A. Rizk
Keyword(s):  
Dipole Moments ◽  
Tautomeric Equilibria
Sign in / Sign up

Export Citation Format

Share Document