Calculation of ab initio dynamic polarizabilities of conjugated polymers I. Polyacetylene with interchain interactions

Dynamic polarizabilities of polyacetylene are presented using the previously developed coupled Hartree-Fock method for polymers. The influence of crystal field has been treated with the help of a point charge model. The polarizabilities with and without the effect of the environment are compared. The results are discussed and compared with studies in the literature, which are based on cluster calculations for the static polarizabilities.