On the oximine complexes of transition metals, Part CXIII Protolytic equilibria in the solutions of some complexes of the type [Co(Diox.H_2 AB] with alpha-benzyldioxime and alpha-furyldioxime

Authors

  • Cs. Várhelyi
  • J. Zsakó
  • T. J. Megyes
  • K. Majdik
  • G. Liptay

Abstract

11 complexes of the type [Co(Diox.H)_2 AB]^n (Diox.H)_2-alpha benzyldioxime (Diphenylglyoxime: Dif.H_2), alpha-furyldioxime furox.H_2), A, B, - CN^-, NO_2^-, HSO_3^-, SO_3^2-, H_2O, amine) were obtained by various substitution reactions, and characterized by middle IR and electronic spectral data. The protolytic equilibria: [Co(Diox.H)_2 AB]^n \leftrightarrows H^+ [Co(Diox.H)(Diox)AB]^n-1 + \leftrightarrows H^+ of these complexes in aqueous solutions were studied by potentiometric and spectrophotometric measurements (in Britton-Robinson buffer solutions). The complicated character of these processes (5 equilibria in a wide pH range) was discussed.

Keywords:

Co(III) dioxime complexes, protolytic equilibria, aromatic, alpha-dioxime, UV, IR spectra of Co(III) complexes

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How to Cite

Várhelyi, C., Zsakó, J., J. Megyes, T., Majdik, K., Liptay, G. “On the oximine complexes of transition metals, Part CXIII Protolytic equilibria in the solutions of some complexes of the type [Co(Diox.H_2 AB] with alpha-benzyldioxime and alpha-furyldioxime”, Periodica Polytechnica Chemical Engineering, 43(1), pp. 41–49, 1999.

Issue

Vol. 43 No. 1 (1999)

Section

Articles