Three dimensional tris[triorganotin(IV)]hexacyanoiron(III) polymeric complexes as oxidising agents

The oxidation of N₂H₄ by tris[triorganotin(IV)]hexacyanoiron(III) polymer complexes has been studied spectrophotometrically. The oxidation rate is first order in both complex and N₂H₄ and the rate constant increases with increasing pH. Experiments over the temperature range (15–30 °C) allowed calculation of the activation parameters. An outer-sphere mechanism involving a rate-determining one-electron transfer is proposed. In addition, the products of the solid reactions between the iron(III) polymeric complexes and N₂H₄ were investigated by i.r., u.v. reflectance, X-ray powder diffraction, e.p.r. spectra and magnetic measurements.