Contributions of Multipolar Polarizabilities to the Isotropic and Anisotropic Light Scattering Induced by Molecular Interactions in Gaseous Sulfur Hexafluoride

Verfasser / Beitragende:
[M.S.A. El-Kader, S.M. El-Sheikh, M. Omran]
Ort, Verlag, Jahr:
2004
Enthalten in:
Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics, 218/10/2004(2004-10-01), 1197-1212
Format:
Artikel (online)
ID: 378932365
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024 7 0 |a 10.1524/zpch.218.10.1197.43591  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1524/zpch.218.10.1197.43591 
245 0 0 |a Contributions of Multipolar Polarizabilities to the Isotropic and Anisotropic Light Scattering Induced by Molecular Interactions in Gaseous Sulfur Hexafluoride  |h [Elektronische Daten]  |c [M.S.A. El-Kader, S.M. El-Sheikh, M. Omran] 
520 3 |a The binary isotropic and anisotropic collision-induced light scattering spectra of the gaseous sulfur hexafluoride at room temperature are analyzed in terms of recent intermolecular potential and interaction-induced pair polarizability models, using quantum line-shapes computations. The spectra at relatively low frequencies are determined largely by the effect of bound and free transitions. At intermediate frequencies the spectra are sensitive to both the attractive part of the potential and the short-range part of the polarizability trace and anisotropy. The high frequency wings are discussed in terms of the collision-induced rotational Raman effect and estimates for the dipole-octopole polarizability E, is obtained and checked with recent ab initio theoretical value. Absolute zeroth moment of both spectra have been measured and compared with theoretical calculations using different models of the intermolecular potentials. Also, the temperature dependence of the pressure second virial coefficient, viscosity and thermal conductivity are also discussed for the proposed potentials. The results show that (M3SV) is the most accurate potential yet reported for this system. 
540 |a © 2004 Oldenbourg Wissenschaftsverlag GmbH 
690 7 |a Thermodynamics & statistical physics  |2 nationallicence 
690 7 |a Laboratory techniques, experiments  |2 nationallicence 
690 7 |a Physical chemistry  |2 nationallicence 
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700 1 |a El-Sheikh  |D S.M.  |4 aut 
700 1 |a Omran  |D M.  |4 aut 
773 0 |t Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics  |d Oldenbourg Wissenschaftsverlag GmbH  |g 218/10/2004(2004-10-01), 1197-1212  |x 0942-9352  |q 218:10/2004<1197  |1 2004  |2 218  |o zpch 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a El-Sheikh  |D S.M.  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Omran  |D M.  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics  |d Oldenbourg Wissenschaftsverlag GmbH  |g 218/10/2004(2004-10-01), 1197-1212  |x 0942-9352  |q 218:10/2004<1197  |1 2004  |2 218  |o zpch 
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