• R. Jeevi Esther Rathnakumari
• C.Kavitha

Oxidative decarboxylation of phenylsulfinylacetic acids (PSAAs) by iron(III) polypyridyl complexes in nonionic surfactant Triton X-100 (TX-100) medium has been investigated spectrophotometrically. From the observed Michaelis–Menten kinetics and fractional order dependence on PSAA an initial intermediate formation between PSAA and [Fe(NN)3]3+ is confirmed. Non-linear concave upward Hammett plots were obtained on applying the Hammett substituent constants to the overall rate constants obtained in TX-100 medium. A suitable mechanism has been proposed involving the formation of Diphenyl sulphone as the product. The observed increase in rate with increase in concentration of TX-100 at low concentrations clearly shows that the reaction takes place in micellar medium and both the reactants are associated or incorporated into micellar phase.The various kinetic models like Menger Portnoy, Piszkiewicz, Raghvan and Srinivasan and Berezin were applied to study the quantitative aspects of reactivity in TX-100 medium.

Phenylsulfinylacetic acids, Iron(III) polypyridyl complexes, Electron transfer reactions, Menger-Portnoy model, Piszkiewicz model, Raghvan and Srinivasan model, Berezin model;

"Triton X-100 micellar effects and Kinetic models in the oxidation of Phenylsulfinylacetic acids by Iron(III) polypyridyl complexes", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 5, page no.h202-h218, May-2024, Available :http://www.jetir.org/papers/JETIR2405726.pdf

"Triton X-100 micellar effects and Kinetic models in the oxidation of Phenylsulfinylacetic acids by Iron(III) polypyridyl complexes", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 5, page no. pph202-h218, May-2024, Available at : http://www.jetir.org/papers/JETIR2405726.pdf