Oxidation of hypophosporus acid by poly(pyridine)iron (III) complexes

Authors

  • U.F. Yusuf Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria Author
  • J.F. Iyun Department of Chemistry, Ahmadu Bello University, Zaria, Nigeria Author
  • G.A. Ayoko Department of Chemistry, University of Queensland, Brisbane QLD 4072, Australia Author

Keywords:

hypophosporus acid, poly(pyridine)iron (III) complexes, Oxidation

Abstract

 The kinetics of the titled reaction in aqueous solution of perchloric acid was monitored spectrophotomerically at ionic strength of I = 2.0M (NaClO4). The reaction obeys the rate law: Rate = 2k
 [Fe(LL)33+][H3PO2] where k = 1.83 x 10-4 dm3 mol-1s-1 and 1.13 x 10-4 dm3 mol-1s-1 at 25.0 +0.1oC for the
 reaction with LL = 1,10-phenanthroline and 2,2’-bipyridine respectively. [H+] varied in the range 0.6 
2.0 M had no effect on the rate. Plausible reaction steps have been suggested.

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Published

2025-03-01

Issue

Vol. 1 No. 1 (2004): ChemClass Journal

Section

Articles