COLLISION-BROADENED LINE WIDTHS OF TETRAHEDRAL MOLECULES: THEORETICAL FORMULATION
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Date
1974
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Ohio State University
Abstract
A theoretical formulation is presented within the framework of Anderson-Tsao-Curnutte theory for calculating the half-widths of spectral lines belonging to tetrahedral molecules. The importance of tetrahedral symmetry in the charge distribution and in the wave functions is emphasized. Expressions for the interruption functions $S_{2}(b)$ have been derived for octopole-dipole, octopole-quadrupole, octopole-octopole, octopole-hexadecapole, hexadecapole-dipole, hexadecapole-quadrupole, hexadecapole-octopole, hexadecapole-hexadecapole, anisotropic dispersion interactions as well as for an assumed overlap interaction potential. The earlier theoretical work of Tejwani and Yamamoto and Hirono is shown to be inappropriate for molecules of tetrahedral symmetry.
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This research was supported by NASA under Grant No. NGR-33-015-139.
Author Institution: Department Of Mechanics, State University of New York
Author Institution: Department Of Mechanics, State University of New York