DFT calculation of optical properties of new neutral hexacoordinated Si(bzimpy) 2 complexes

Abstract

We consider optical properties of 4 neutral hexacoordinated Si(bzimpy) 2 complexes, containing the 2,6- bis(benzimidazol-2 ′ -yl)pyridineligandusingDFTmethod. Thegeometricalparametersoftheoptimized cluster structures, the electronic absorption spectrum, and the molecular orbitals of the structures under consideration are discussed. The effect of addition of the substituents ligands to the of Si(bzimpy) 2 compound is considered. We found that succesive addition of substituents shifts HOMO and LUMO to higher values. The manipulation may provide desirable optical properties of the material.

Keywords

• dft
• silicon hexacoordinated complexes
• electronic absorption spectrum