Monatshefte für Chemie / Chemical Monthly

, Volume 106, Issue 6, pp 1325–1332 | Cite as

Der Cyano-nitro-bis-biacetyldioximato-kobalt(III)-Komplex und seine Aquatisierungskinetik in saurem Medium

Über α-Dioximinkomplexe der Übergangsmetalle, 50. Mitt.
  • Csaba Várhelyi
  • Zoltán Finta
  • Sándor Kiss
Anorganische, Struktur- und Physikalische Chemie

On the dioximine complexes of transition metals, 50.: The cyano-nitro-bis-biacetyldioximato-cobalt(III)-complex and its aquotization kinetics in acidic medium


The [Co(BH)2(CN)(NO2)] complex (BH2 = biacetyldioxime) has been obtained by means of an anatation reaction from the [Co(BH)2(NO2)(H2O)] nonelectrolyte with KCN in aqueous solution. The free acid H[Co(BH)2(CN)(NO2)]·4 H2O and 12 derivatives were obtained by double decomposition reactions. The thermal decomposition of some of these compounds was thermogravimetrically studied. Kinetics of the aquotization of the [Co(BH)2(CN)(NO2)] was investigated in acid solution by following the change of the concentration of the free NO2-ions by means of a diazotation reaction. The kinetic parameters of the reaction are given.


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Copyright information

© Springer-Verlag 1975

Authors and Affiliations

  • Csaba Várhelyi
    • 1
  • Zoltán Finta
    • 1
  • Sándor Kiss
    • 1
  1. 1.Chemische Fakultät der “Babeş-Bolyai”-UniversitätCluj-NapocaRumänien

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