Approximate calculation of the dynamic polarizabilities and dispersion interaction for ethylene molecules
Abstract
The dynamic dipole–dipole, quadrupole–quadrupole and dipole–octupole polarizabilities for the ethylene molecule have been calculated using the Kirkwood variation method. These approximate dynamic polarizabilities are used to calculate the R–6 and R–8 terms of the dispersion interaction between two ethylene molecules. The agreement with more elaborate calculations is encouraging.
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