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Base hydrolysis of tris(acetylacetonato)metal(III) complexes involving technetium and ruthenium

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Abstract

Base hydrolysis of Tc(acac)3 and Ru(acac)3 was studied in 0.1–1M NaOH at different temperatures. In spite of apparent similarity of these complexes Tc(acac)3 showed more complexity than Ru(acac)3 in kinetic behavior. Tc(acac)3 decomposes with a rate, d[Tc(acac)3]/dt=(k1[OH−]+ +k2[OH−]2)[Tc(acac)3], where k1 and k2 at 25°C are (1.67±0.11)×10−5 mol−1·s−1 and (1.71±±0.14)×10−5 mol−2·s−1, respectively. Decomposition of Ru(acac)3 is expressed by the rate equation d[Ru(acac)3]/dt=k[OH−][Ru(acac)3], where k at 37°C is (8.01±0.23)×10−6 mol−1·s−1.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Science, Tohoku University, Aoba-ku, 980, Sendai, (Japan)

    A. Mutalib & K. Yoshihara

  2. Department of Chemistry, Faculty of Science, Shizuoka University, Ohtani, 422, Shizuoka, (Japan)

    T. Omori

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  1. A. Mutalib
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  2. T. Omori
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  3. K. Yoshihara
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Mutalib, A., Omori, T. & Yoshihara, K. Base hydrolysis of tris(acetylacetonato)metal(III) complexes involving technetium and ruthenium. Journal of Radioanalytical and Nuclear Chemistry Articles 170, 67–77 (1993). https://doi.org/10.1007/BF02134577

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  • DOI: https://doi.org/10.1007/BF02134577

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