The Dipole Moments of Molecules Containing Two Movable Dipoles
1938; American Institute of Physics; Volume: 6; Issue: 10 Linguagem: Inglês
10.1063/1.1750136
ISSN1520-9032
Autores Tópico(s)Mechanical and Optical Resonators
ResumoThe average dipole moment of a molecule containing two movable dipoles has been calculated as a function of temperature and restriction to internal rotation for three different potential functions. The potential functions used are: (V0/2)(cos φ+1), (V0/π)(π—φ) and V0/π2(π—φ)2, where V0 is the difference in potential energy between the cis and trans forms of the molecule and φ is the angle between the planes containing the dipoles and the axis of rotation. Values of the integral ∫ 0πcos x exp (−bx2)dx are tabulated for values of b ranging from 0 to 2 at intervals of 0.1. The dipole moments of s-dichloro-ethane, 1,2-bromo-chloro-ethane and s-dibromo-ethane as a function of temperature are used with the three potential functions to determine values of V0. The values thus obtained are compared with the values obtained by other methods.
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