Thermal Annealing Behavior of the Recoil <SUP>57</SUP>Co Formed by the Decay of <SUP>57</SUP>Ni-Labeled Hexamminenickel(II) Complexes
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概要
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Thermal annealing reactions of <SUP>57</SUP>Co formed by the EC and β<SUP>+</SUP>-decay of the <SUP>57</SUP>Ni-labeled hexamminenickel(II) halide complexes were investigated in detail by means of ion-exchange techniques. When the annealing is carried out at high temperatures, the chemical behavior of <SUP>57</SUP>Co is remarkably affected by the thermal decomposition of the parent and daughter complexes. In the intrinsic annealing, however, the annealing curves have characteristic shapes and the plateau yields of <SUP>57</SUP>Co(NH<SUB>3</SUB>)<SUB>6</SUB><SUP>3+</SUP> ion are independent of the temperature, depending on the nature of the outer-sphere anion. The unusual oxidation reaction of the recoil <SUP>57</SUP>Co(II) species is explained by the action of the crystal defects in the near-neighborhood of the recoil site.
- 公益社団法人 日本化学会の論文
著者
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Omori Takashi
Department Of Biostatistics Kyoto University
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OMORI Takashi
Department of Chemistry, Faculty of Science, Tohoku University
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SHIOKAWA TAKANOBU
Department of Cbemistry, Faculty of Science, Toboke University,
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Wu Shaw-Chii
Department of Chemistry, Faculty of Science, Tohoku University
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