Sr2CuO2Cl2. Signifies a nearly excellent circumstance of the 2-D antiferromagnetic CuO2-airplane and therefore is of unique desire from the context with the origins of superior TC superconductivity. We use the single-website impurity Anderson model with 5 Cu 3d orbitals and O 2p valence bands specified from the irreducible representations from https://okada4dsg.com/