[en] Uranium oxides UO2, U2O5, U3O8 and UO3 have been studied by X-ray photoemission (E.S.C.A.) and electron paramagnetic resonance. Binding energy values are reported for the U4f core levels, showing that U2O5 is UO2. UO3 and U3O8 is UO2.2UO3. Valence band structures are discussed in relation with the formation of (UO2)2+ groups. Results from EPR spectroscopy support the view that no U(V) species are presented in these compounds. (Auth.)
Source
Blank, H.; Lindner, R. (eds.); Commission of the European Communities, Karlsruhe (Germany, F.R.). European Inst. for Transuranium Elements; p. 409-419; ISBN 0 7204 0404 5; 
; 1976; North-Holland; Amsterdam, The Netherlands; 5. international conference on plutonium and other actinides; Baden Baden, Germany, F.R; 10 - 13 Sep 1975
; 1976; North-Holland; Amsterdam, The Netherlands; 5. international conference on plutonium and other actinides; Baden Baden, Germany, F.R; 10 - 13 Sep 1975