Contributions of multipolar polarizabilities to the isotropic and anisotropic light scattering induced by molecular interactions in gaseous methane

被引:12
|
作者
El-Kader, M. S. A. [1 ]
El-Sheikh, S. M. [1 ]
Bancewicz, T. [2 ]
Hellmann, R. [3 ]
机构
[1] Cairo Univ, Fac Engn, Dept Engn Math & Phys, Giza 12211, Egypt
[2] Adam Mickiewicz Univ Poznan, Inst Phys, Div Nonlinear Opt, PL-60780 Poznan, Poland
[3] Univ Rostock, Inst Chem, D-18059 Rostock, Germany
来源
JOURNAL OF CHEMICAL PHYSICS | 2009年 / 131卷 / 04期
关键词
ab initio calculations; organic compounds; polarisability; potential energy functions; Raman spectra; translational states; ROTATIONAL RAMAN-SCATTERING; COLLISION-INDUCED SCATTERING; CH4-INERT GAS-MIXTURES; QUADRUPOLE POLARIZABILITY; SPECTRAL MOMENTS; COUPLED-CLUSTER; LONG-RANGE; CH4; ATOMS; PAIR;
D O I
10.1063/1.3180823
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The binary isotropic and anisotropic collision-induced light scattering spectra of gaseous methane at room temperature are analyzed in terms of a recent ab initio intermolecular potential and interaction-induced pair polarizability trace and anisotropy models, using quantum line-shapes computations. The translational spectra at relatively low frequencies are determined largely by the effects 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-quadrupole polarizability A and the dipole-octopole polarizability E are obtained and checked with recent ab initio theoretical values.
引用
收藏
页数:6
相关论文
共 50 条
  • [1] Contributions of multipolar polarizabilities to the isotropic and anisotropic light scattering induced by molecular interactions in gaseous sulfur hexafluoride
    El-Kader, MSA
    El-Sheikh, SM
    Omran, M
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2004, 218 (10): : 1197 - 1212
  • [2] Contributions of multipolar polarizabilities to the anisotropic and isotropic light scattering induced by molecular interactions in gaseous CF4
    Elliasmine, A
    Godet, JL
    LeDuff, Y
    Bancewicz, T
    SPECTRAL LINE SHAPES, VOL 9 - 13TH ICSLS, 1997, (386): : 519 - 520
  • [3] Multipolar polarizations of methane from isotropic and anisotropic collision-induced light scattering
    Bancewicz, T
    Nowicka, K
    Godet, JL
    Le Duff, Y
    PHYSICAL REVIEW A, 2004, 69 (06): : 062704 - 1
  • [4] Higher order multipolar polarizabilities of carbon tetrafluoride from isotropic and anisotropic light scattering experiments
    El-Kader, M. S. A.
    Bancewicz, T.
    Maroulis, G.
    JOURNAL OF MOLECULAR STRUCTURE, 2010, 984 (1-3) : 262 - 267
  • [5] Lineshape and moment analysis in isotropic and anisotropic interaction-induced light scattering spectra of gaseous helium
    El-Kader, MSA
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2004, 218 (03): : 293 - 309
  • [6] Isotropic and anisotropic collision-induced light scattering spectra from high temperature gaseous mercury
    El-Kader, M. S. A.
    PHYSICS LETTERS A, 2009, 373 (23-24) : 2054 - 2060
  • [7] SPECTRUM OF COLLISION-INDUCED SCATTERING - ROLE OF MULTIPOLAR POLARIZABILITIES
    BARREAU, A
    BERRUE, J
    CHAVE, A
    DUMON, B
    THIBEAU, M
    OPTICS COMMUNICATIONS, 1985, 55 (02) : 99 - 104
  • [8] Multipolar polarizabilities from interaction-induced Raman scattering
    Bancewicz, T
    Le Duff, Y
    Godet, JL
    MODERN NONLINEAR OPTICS, PT 1, SECOND ED, 2001, 119 : 267 - 307
  • [9] Isotropic collision-induced light scattering by gaseous CF4
    Elliasmine, A
    Godet, JL
    LeDuff, Y
    Bancewicz, T
    PHYSICAL REVIEW A, 1997, 55 (06) : 4230 - 4237
  • [10] Isotropic collision-induced light scattering by gaseous CF4
    Elliasmine, A.
    Godet, J.-L.
    Le Duff, Y.
    Bancewicz, T.
    Physical Review A. Atomic, Molecular, and Optical Physics, 1997, 55 (06):