Publications

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1994
S.M.El-Sheikh, and M.S.A.El-Kader, "Interpretation of Raman spectra of van der Waals dimers in the molecular methane", Journal of Engineering and applied Science, vol. 41, issue 4, pp. 685-700, 1994.
1997
M.S.A.El-Kader, "Line Shape analysis of the depolarized light scattering in the molecular mixture of SF6 with noble gases", The 3rd ICEMP., Faculty of Engineering, Cairo University, 23rd-25th Dec., 1997.
1998
M.S.A.El-Kader, and S.M.El-Sheikh, "MULTIPROPERTY EMPIRICAL ANISOTROPIC INTERMOLECULAR POTENTIAL FOR CF4-Ar", Journal of Engineering and applied Science, vol. 45, issue 6, pp. 865-879, 1998.
1999
M.S.A.El-Kader, "The depolarized interaction-induced light scattering spectrum of mercury vapor at low density", Physics Letters A, vol. 257, pp. 301-308, 1999.
M.S.A.El-Kader, "Moment analysis in depolarized light scattering: determination of a single-parameter empirical pair-polarizability anisotropy for mercury", J.Phys.D: Applied Phys., vol. 32, pp. 869-873, 1999.
2000
M.S.A.El-Kader, and B.M.Taher, "Collision-induced light scattering from carbon tetrafluoride and sulfur hexafluoride molecular gases", Bull.Fac.Sci.Cairo Univ., vol. 68, pp. 73-89, 2000.
M.S.A.El-Kader, and S.M.El-Sheikh, "Three-body spectral moments for collision-induced light scattering by octahedral and tetrahedral molecules", Line Shapes Vol.11, 15th ICSLS, Berlin, Germany, 2000.
2001
M.S.A.El-Kader, "Empirical Interatomic Potential from Depolarized Interaction – Induced Light Scattering Spectra for Mercury", Z.Phys.Chem., vol. 215, issue 7, pp. 893-904, 2001.
2002
M.S.A.El-Kader, S.M.El-Sheikh, and R.Mehrem, "An Approximate Empirical Intermolecular Potential for CF4–Ar", Z.Phys.Chem., vol. 216, pp. 763-773, 2002.
, "The depolarized interaction-induced light scattering spectrum and ground state potential curve of gaseous argons ", J.Phys.B: At.Mol.Opt.Phys., vol. 35, pp. 4021-4032, 2002.
M.S.A.El-Kader, "Empirical Interatomic Potential from Polarized and Depolarized Interaction-Induced Light Scattering Spectra for Gaseous Helium", Z.Phys.Chem., vol. 216, pp. 1149-1165, 2002.
M.S.A.El-Kader, "Empirical intermolecular potential from depolarized interaction-induced light scattering spectra for tetrafluoromethane", Chemical Physics, vol. 281, pp. 49-60, 2002.
M.S.A.El-Kader, "On high pressure phase transitions in solid methane", Chemical Physics, vol. 277, pp. 77-81, 2002.
2003
M.S.A.El-Kader, "An approximate multi-property empirical isotropic interatomic pair potential for the krypton dimer", Molecular Physics, vol. 101, issue 16, pp. 2615-2624, 2003.
M.S.A.El-Kader, and B.M.Taher, "Thermodynamic, Transport and Collision-Induced Light Scattering Data of Xenon Gas Simultaneously Fitted by an Isotropic Interatomic Potential", Z.Phys.Chem., vol. 217, issue 9, pp. 1127-1141, 2003. Abstract

An approximate empirical isotropic interatomic potential for xenon interaction is developed by simultaneously fitting the Morse-Morse-Morse Spline van der Waals potential form to interaction second pressure virial coefficient, viscosity, thermal conductivity and depolarized interaction-induced light scattering data. Absolute zeroth and second moments of the two-body depolarized spectrum have been measured and compared with theoretical calculations using various models for the interatomic potential. In additions, vibrational energy levels, third pressure virial coefficient and self-diffusion calculated for the new potential are compared with experimental ones. The results show that it is the most accurate potentials yet reported for this system. The use of the new potential in lattice sum calculations yields good results for several properties of solid xenon.

2004
M.S.A.El-Kader, "An Approximate Empirical anisotropic multi-parameter Intermolecular Potential for CF4–He", Egypt.J.Phys., vol. 35, issue 2, pp. 293-310, 2004.
M.S.A.El-Kader, and S.M.El-Sheikh, "Collision-Induced Light Scattering Spectra of Mercury Vapor at Different Temperatures", Lecture Series on Computer and Computational ScienceVolume 1, 2004, pp.1069-1072s , Greece, 2004.
M.S.A.El-Kader, S.M.El-Sheikh, and M.Omran, "Contributions of multipolar polarizabilities to the isotropic and anisotropic light scattering induced by molecular interactions in gaseous Sulfur Hexafluoride", Z.Phys.Chem., vol. 218, pp. 1197-1212, 2004.
M.S.A.El-Kader, "Induced pair-polarizability anisotropy in mercury from depolarized interaction-induced light scattering spectra at different temperatures", Egypt.J.Phys., vol. 35, issue 1, pp. 147-162, 2004.
M.S.A.El-Kader, "Lineshape and Moment Analysis in Isotropic and Anisotropic Interaction-Induced Light Scattering Spectra of Gaseous Helium", Z.Phys.Chem., vol. 218, pp. 293-309, 2004.
2005
M.S.A.El-Kader, and S.M.El-Eraky, "Anisotropic and Isotropic Light Scattering Data of Neon Gas Simultaneously Fitted by an Isotropic Ground State Interatomic Potential", Z.Phys.Chem., vol. 219, pp. 181-195, 2005.
M.S.A.El-Kader, "Empirical models of the pair-polarizability trace and anisotropy from polarized and depolarized interaction-induced light scattering spectra for gaseous krypton", Z.Phys.Chem., vol. 219, pp. 1169-1183, 2005.
M.S.A.El-Kader, and S.I.Moustafa, "High-frequency interaction-induced rototranslational wings of anisotropic nitrogen spectra", Chemical Physics, vol. 318, pp. 199-206, 2005.
2008
M.S.A.El-Kader, "Collision-induced light scattering spectra and ground state potential of gaseous xenon", Chemical Physics, vol. 352, issue 1-3, pp. 311-319, 2008. Abstract

Polarized and depolarized collision-induced light scattering spectra of xenon gas at room temperature 295 K with the pressure second virial coefficients, viscosity and thermal conductivity have been used for deriving the empirical models of the pair-polarizability trace and anisotropy and the interaction potential. Theoretical zeroth and second moments of the binary spectra using various models for the pair polarizabilities and interatomic potential are compared with the experimental values performed by Frommhold’s group. In addition, vibrational energy levels, self diffusion coefficients and second virial dielectric constants calculated for these models are compared with experimental ones. The results show that these models are the most accurate models reported to date for this system.

Keywords
Polarized and depolarized light scattering spectra; Xenon

2009
M.S.A.El-Kader, "Collision-induced light scattering spectra and pair-polarizability trace and anisotropy of gaseous neon", Physics Letters A, vol. 373, pp. 243-251, 2009.
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