10.48788/DVUA/XQK99HSmolyak Svitlana0000-0002-5403-4092SPM&RS CentreKarbivskyy Volodymyr0000-0003-0412-2788SPM&RS CentreDataverseUA2025PhysicsX-ray Photoelectron SpectroscopyElectronic structureX-ray Photoelectron SpectroscopyElectronic structureSmolyak SvitlanaSPM&RS CentreKurdyumov Institute for Metal PhysicsNAS of UkraineSPM&RS Centre2025-10-282025-11-21Spectra – processed experimental spectrum2030140127123719612636426841239296891034065688574519900108608303153485470image/tiffimage/emfimage/emfimage/emfimage/emfimage/emftext/plainimage/emfimage/tifftext/plainimage/emfimage/emftext/plainimage/emftext/plain1.0CC BY 4.0The peculiarities of the electronic structure in Mn₂₋ₓCoₓP₂O₇·5H₂O, at x = 1.0, were analyzed through X-ray photoelectron spectroscopy.X-ray photoelectron spectra (XPS) of the sample - Mn₂₋ₓCoₓP₂O₇·5H₂O, at x=1.0, have been obtained on the photoelectron spectrometer of firm "JEOL" - “JSPM-4610” with the use of the non-monochromatic Al Kα (1486.6 eV) X-ray source. During the experiment, the vacuum in the analytical chamber was 10-7 Pa, the accuracy of the electrons binding energy definition - 0.1 eV. The samples were in the form of dispersed powder deposited on an aluminum substrate. Because the investigated samples are insulators, the emission of electrons during the spectrum acquisition led to the formation of a positive electrical charge on their surface and to an essential shift of corresponding lines. Calibration of X-ray photoelectron spectra taking into account the accumulated charge, were carried by the binding energy of 1s-level of carbon, which was accepted equal to 284.4 eV. The synthesis of the samples was carried out by Candidate of Chemical Sciences Tkachova N.V.Kyiv, UkraineNAS of Ukraine