Sr2CuO2Cl2. represents an almost excellent scenario of the two-D antiferromagnetic CuO2-airplane and thus is of certain curiosity inside the context on the origins of substantial TC superconductivity. We've got measured experimentally and analyzed theoretically the Ti 2p X-ray photoemission spectra (XPS) and also the resonant enhancement of valence photoemissionat the https://okada4dsg.com/