Studies of matrix effects on 57Co-labelled tris(.BETA.-diketonato)cobalt(III) by means of Moessbauer spectroscopy.
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概要
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The emission Mössbauer spectra at 78 K of <SUP>57</SUP>Co-labelled Co(dbm)<SUB>3</SUB> (dbm=dibenzoylmethanato) dispersed in 2-methyltetrahydrofuran, or of <SUP>57</SUP>Co-labelled Co(acac)<SUB>3</SUB> (acac=acetylacetonato) dispersed in a mixed medium of oxalic acid and polystyrene, give no appreciable magnetic hyperfine structure (hfs), while those of <SUP>57</SUP>Co-labelled Co(acac)<SUB>3</SUB> dispersed in polystyrene and <SUP>57</SUP>Co-labelled crystalline Co(dbm)<SUB>3</SUB> give a magnetic hfs. The results indicate that the local radiolysis of EC-decay involves not only the labelled species itself, but also the neighbouring host matrix.
- 公益社団法人 日本化学会の論文
著者
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Endo Kazutoyo
Department Of Physical Chemistry Showa Pharmaceutical University
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Sakai Yoichi
Department Of Bio- And Geosciences Graduate School Of Science Osaka City University
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Sano Hirotoshi
Deparment of Chemistry, Faculty of Science, Tokyo Metropolitan University
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Sakai Yoichi
Department of Chemistry, Faculty of Science, The University of Tokyo
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