Sr2CuO2Cl2. signifies an almost great case of the two-D antiferromagnetic CuO2-aircraft and therefore is of particular fascination in the context on the origins of large TC superconductivity. We have now measured experimentally and analyzed theoretically the Ti 2p X-ray photoemission spectra (XPS) along with the resonant enhancement of valence photoemissionat https://okada4dsg.com/