The electronic and optical properties of all molecules were investigated using the time dependent density functional theory (TD-DFT) and Gaussian 09 package [8] was employed throughout this calculation. The Slater-exchange [9] with VWN [10] correlation functional (SVWN) for the local spin density approximation (LSDA), BLYP for the generalized gradient approximation (GGA), and hybrid B3LYP functional [11] were selected for describing the exchange-correlation functional terms. Three different basis sets including the polarized (6-31G*), further expanded (6-311G**), and augmented Dunning’s correlation-consistent double-ξ basis (aug-cc-pVDZ) were selected to calculate the electronic structure of such these molecules to compare with the experimental data. Finally, the B3LYP/aug-cc-pVDZ level of theory has been chosen to calculate the electron affinity and ionization potentials because it can properly describe for the delocalized nature surface behavior of the lowest unoccupied orbital of such molecules. Optical properties of all molecules were also calculated using the same basis set and method which its accuracy is sufficient for these calculations.