Sr2CuO2Cl2. signifies a virtually perfect situation of a two-D antiferromagnetic CuO2-aircraft and thus is of unique fascination inside the context in the origins of higher TC superconductivity. We use The one-site impurity Anderson product with 5 Cu 3d orbitals and O 2p valence bands specified via the irreducible representations with https://okada4dsg.com/