Sr2CuO2Cl2. Signifies a nearly perfect circumstance of the two-D antiferromagnetic CuO2-airplane and therefore is of unique desire during the context on the origins of large TC superconductivity. We use the single-web page impurity Anderson product with 5 Cu 3d orbitals and O 2p valence bands specified with the irreducible representations https://okada4dsg.com/