Sr2CuO2Cl2. signifies a nearly great scenario of a 2-D antiferromagnetic CuO2-aircraft and so is of particular fascination within the context in the origins of significant TC superconductivity. We've calculated experimentally and analyzed theoretically the Ti 2p X-ray photoemission spectra (XPS) as well as resonant enhancement of valence photoemissionat the Ti https://okada4dsg.com/