Synthesis of tris(β-diketonato) technetium(III) and its adsorption behaviour on silica gel |
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| Authors: | K Hashimoto T Sekine T Omori K Yoshihara |
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| Institution: | (1) Department of Chemistry, Faculty of Science, Tohoku University, 980 Sendai, Japan |
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| Abstract: | Tris (benzoylacetonato) technetium(III) and tris (2-thenoyltrifluoroacetonato) technetium(III) were synthesized by the direct reduction of pertechnetate with dithionite in the presence of excess ligands. The geometrical isomers of the benzoylacetonate were further separated by means of a silica gel column chromatography. In the silica gel system, the adsorption distribution coefficient of the tris ( -diketonato) technetium(III) decreases in the order of Tc(acac)3>fac-Tc(bzac)3>mer-Tc(bzac3)>Tc(tta)3. |
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