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A kinetic study of the reaction between tetrakis (N,N′-diethylimidazolidine-2-thione)-trans-dioxo-osmium(2+) perchlorate and some imidazolidine-2-selones

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Summary

The reduction kinetics of tetrakis(N,N′-diethylimidazolidine-2-thione)trans-dioxo-osmium(2+) perchlorate with imidazolidine-2-selone and itsN-methyl-N′-ethyl derivatives have been investigated in H2O/EtOH (1∶1 vol) in the presence of perchloric acid. The selones give a fast substitution at the metal which is subsequently reduced to osmium(III).

The kinetic equation is that also found for OsO4 as substrate and the specific rate constants and activation parameters of the two reactions are practically the same.

A mechanism involving the formation of an intermediate species through an equilibrium is tentatively proposed.

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References

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Authors and Affiliations

  1. Istituto di Chimica Generale, Inorganica ed Analitica, Via Ospedale 72, 09100, Cagliari, Italy

    Franco Cristiani, Francesco A. Devillanova, Angelo Diaz & Gaetano Verani

  2. Istituto die Chimica Generale ed Inorganica, Via Campi 183, 41 100, Modena, Italy

    Luciano Antolini

Authors
  1. Franco Cristiani
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  2. Francesco A. Devillanova
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  3. Angelo Diaz
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  4. Gaetano Verani
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  5. Luciano Antolini
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Cristiani, F., Devillanova, F.A., Diaz, A. et al. A kinetic study of the reaction between tetrakis (N,N′-diethylimidazolidine-2-thione)-trans-dioxo-osmium(2+) perchlorate and some imidazolidine-2-selones. Transition Met Chem 8, 236–237 (1983). https://doi.org/10.1007/BF00620700

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  • DOI: https://doi.org/10.1007/BF00620700

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