Sr2CuO2Cl2. Signifies a nearly great case of the two-D antiferromagnetic CuO2-plane and so is of certain curiosity during the context of the origins of higher TC superconductivity. We use The only-internet site impurity Anderson model with 5 Cu 3d orbitals and O 2p valence bands specified by the irreducible representations https://okada4dsg.com/