caa a22 4500 465733069 CHVBK 20180323111746.0 cr unu---uuuuu 170327e19900201xx s 000 0 eng 10.1007/BF02218163 doi (NATIONALLICENCE)springer-10.1007/BF02218163 Temperature dependence of the mixed-valence state of57Fe-atoms produced in57Co-Labelled oxo-centered trinuclear iron acetate complexes [Elektronische Daten] [T. Sato, M. Katada, H. Sano] Emission Mössbauer spectra of mixedvalence trinuclear complexes,57Co-labelled [CoFe2O(CH3CO2)6(H2O)3] and [CoFe2O(CH3CO2)6 (py)3]py were compared with that of [CoCr2O(CH3CO2)6 (py)3]py. It was found that the57Fe atoms produced in57Co-labelled [CoFe2O(CH3CO2)6(H2O)3] and [CoFe2O(CH3CO2)6 (py)3]py showed a temperature-dependent mixed-valence state as observed in the absorption Mössbauer spectra of [Fe3O(CH3CO2)6 (H2O)3] and [Fe3O(CH3CO2)6 (py)3]py, respectively, while57Co-labelled [CoCr2O(CH3CO2)6 (py)3]py showed a temperature-independent divalent iron/II/ state. The results indicate that the decayed atoms keep their position at the sites of original57Co atoms and that the valence electrons are transferred through the intramolcular bondings. Akadémiai Kiadó, 1990 Sato T. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut Katada M. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut Sano H. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/3(1990-02-01), 195-202 0236-5731 144:3<195 1990 144 10967 https://doi.org/10.1007/BF02218163 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02218163 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sato T. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut NATIONALLICENCE 700 1- Katada M. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut NATIONALLICENCE 700 1- Sano H. Department of Chemistry, Faculty of Science, Tokyo Metropolitan University, Fukasawa, 158, Setagaya, Tokyo, Japan aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/3(1990-02-01), 195-202 0236-5731 144:3<195 1990 144 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer