NaCl构型晶体结构的CuO8六面体具有较高的对称性，使得CuO8六面

The CuO8 hexahedron with the NaCl configuration crystal structure has high symmetry, which makes the Cu-3d in the CuO8 hexahedron the highest delocalization. Cu-3d and O-2p hybridize strongly, and the energy bands overlap each other, so there is no localization. The forbidden band of the electronic state in the domain, and the energy band is very discrete.

The cuo8 hexahedron with NaCl crystal structure has high symmetry, which makes the highest delocalization of cu-3d in cuo8 hexahedron, strong hybridization between cu-3d and o-2p, and overlapping energy bands. Therefore, there is no local electronic state gap, and the energy bands are very discrete.

CuO8 hexahedron with NaCl crystal structure has high symmetry, which makes the delocalization of Cu-3d in CuO8 hexahedron the highest, the hybridization between Cu-3d and O-2p is strong, and the energy bands overlap with each other, so there is no local electronic band gap, and the energy bands are very discrete.