A modification potential method of calculating total cross sections of electrons scattering from complex molecules C₂H₆, C₂F₆,C₆H₆ and C₆F₆ at 100eV--5000eV

A complex optical model potential modified by incorporating the concept of bonded atom, which takes into consideration the overlapping effect of electron clouds between two atoms in a molecule, is first employed to calculate the total cross sections for electrons scattering from such complex molecules as C_2H_6, C_2F_6, C_6H_6 and C_6F_6 using the additivity rule model at Hartree--Fock level over the energy range from 100 eV to 5000 eV. The total cross sections are quantitatively compared with those obtained by experiments wherever available, and they are in good agreement with each other over a wide energy range. It is shown that the modified potential together with the additivity rule model is completely suitable for the calculation of total cross sections of electrons scattering from such complex molecules as C_2H_6, C_2F_6, C_6H_6 and C_6F_6 above 200 eV--300 eV.