Electronic Structure of C₇₀ Within the Tight-Binding Approximation

The electronic structure of C₇₀ molecule with D_5h symmetry has been studied using a simple tight-binding approximation. Comparing the results with those of local -density approximation calculation and experiment, we have determined the hopping matrix element. We have also compared the electronic structure and charge density over cluster of C₇₀ with the results of ellipsoid model, and found the angular momentum and magnetic quantum number (1 and m) of each bunch and level.