Sr2CuO2Cl2. Signifies an almost ideal situation of a two-D antiferromagnetic CuO2-aircraft and so is of particular desire within the context of the origins of large TC superconductivity. We use The one-site impurity Anderson product with 5 Cu 3d orbitals and O 2p valence bands specified because of the irreducible representations https://okada4dsg.com/