An X-ray photoelectron study of the electronic structure of Cu(II) complexes with diaand paramagnetic derivatives of 2-imidazoline
A.D. Fedorenko1, L.N. Mazalov1, I.M. Oglezneva1, E.Yu. Fursova2, V.I. Ovcharenko2
1Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
2Institute "International Tomography Center", Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
Keywords: нитроксильные радикалы, комплексы меди с нитроксильными лигандами, рентгеновская фотоэлектронная спектроскопия, nitroxyl radicals, copper complexes with nitroxyl ligands, X-ray photoelectron spectroscopy
Abstract
The electronic structure of free radicals and Cu(II) complexes with the nitronylnitroxyl radical and amino nitron is studied by X-ray photoelectron spectroscopy (XPS). N1 s XPS spectra of nitrogen atoms of Cu(II) complexes with amino nitrons confirm the diamagnetic nature of the ligands. The binding energies of the main peak and the intense satellite structure in the Cu2p3/2,1/2 spectra of the complexes under study correspond to the Cu(II) state. The structure of the satellite in the Cu2p3/2,1/2 spectrum depends on the environment of the metal ion.
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