《An Insight into the Kinetics and Mechanism of Oxidation of Tris(4,4′-dimethyl-2,2′-bipyridine)iron(II) by Bromate》 was written by Shazia Summer; Shamim, Afshan; Khattak, Rozina; Qamar, Noshab; Naqvi, Iftikhar Imam. Quality Control of 4,4′-Dimethyl-2,2′-bipyridine And the article was included in Russian Journal of Physical Chemistry A in 2020. The article conveys some information:
Kinetic investigation of oxidation of tris(4,4′-dimethyl, 2,2′-bipyridine)iron(II) by bromate has been undertaken. The redox reaction between [Fe(dmbpy)3]2+ and bromate ion (BrO-3) was monitored spectrophotometrically under the pseudo-first order condition i.e.[BrO-3] ≫ [Fe(dmbpy)3]2+. Kinetic data revealed that the pseudo first order rate constant (kobs) is independent of the concentration of [Fe(dmbpy)3]2+. Though, when concentration of bromate ion is increased in reaction mixture at fixed pH, the rate also increases up to the saturation point at higher concentrations, indicating a precursor complex formation and an outer-sphere mechanism. The influence of accelerating [H+] and ionic strength on reaction rate were also investigated. The increasing values of the rate constant at low pH mention the involvement of protonated bromate species (HBrO3 and H2BrO+3) in the rate-determining step. However, a rise in the value of the rate constant with increasing ionic strength implies the diprotonated species, H2BrO+3, as the reactive species. On the basis of these conclusions, we were able to postulate the appropriate mechanism and the rate law of this redox reaction. The experimental part of the paper was very detailed, including the reaction process of 4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6Quality Control of 4,4′-Dimethyl-2,2′-bipyridine)
4,4′-Dimethyl-2,2′-bipyridine(cas: 1134-35-6) is used as a chemical Intermediate. It can be used for the determination of ferrous and cyanide compounds.Quality Control of 4,4′-Dimethyl-2,2′-bipyridine Furthermore, 4,4′-Dimethyl-2,2′-bipyridine is used in the synthesis of a series of o-phenanthroline-substituted ruthenium(II) complexes.