Sr2CuO2Cl2. Signifies an almost perfect circumstance of a 2-D antiferromagnetic CuO2-airplane and so is of unique fascination while in the context on the origins of higher TC superconductivity. We use The one-website impurity Anderson product with 5 Cu 3d orbitals and O 2p valence bands specified by the irreducible representations https://okada4dsg.com/