XPS spectra of free nitroxyl radicals and their electronic structure |
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| Authors: | L. N. Mazalov A. D. Fedorenko V. I. Ovcharenko E. V. Tretyakov E. Yu. Fursova N. A. Kryuchkova |
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| Affiliation: | 1.A. V. Nikolaev Institute of Inorganic Chemistry, Siberian Division,Russian Academy of Sciences,Novosibirsk,Russia;2.Institute “International Tomography Center,” Siberian Division,Russian Academy of Sciences,Novosibirsk,Russia |
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| Abstract: | The N(1s) and O(1s) XPS spectra of stable nitroxyl radicals and molecules with a related heterocycle structure: 4,4,5,5-tetramethyl-2-phenyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl, 4,4,5,5-tetramethyl-2-(3-nitrophenyl)-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl, 4,4,5,5-tetramethyl-2-(2-hydroxyphenyl)-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl, 4,4,5,5-tetramethyl-2-(2-hydroxy-3-nitrophenyl)-4,5-dihydro-1Himidazole-3-oxide-1-oxyl, and 4,4,5,5-tetramethyl-2-phenyl-4,5-dihydro-1H-imidazole-3-oxide were studied. The possibility to apply X-ray electron spectra for investigation of the charge electron and spin density distribution on free radical atoms and at their coordination by a metal is considered. |
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