Cyclic voltammetry of arylferrocenes and ferrocene analogues of chalcones. Substituent effects on the electron density distribution in ferrocene derivatives
作者:Agnes G. Nagy、Stefan Toma
DOI:10.1016/0022-328x(84)80138-2
日期:1984.5
arylferrocenes and two series of ferrocene analogues of chalcone are presented. Good correlations of the oxidation potentials (E) with the σ Hammett constants as well as with the 13C chemical shifts for carbon atoms with different positions in the ferrocenyl moiety have been found. The different sensitivities of these series to the substituenteffects is discussed. The variation of the electron density
Electrochemical method in determination of antioxidative activity using ferrocene derivatives as examples
作者:V. Yu. Tyurin、N. N. Meleshonkova、A. V. Dolganov、A. P. Glukhova、E. R. Milaeva
DOI:10.1007/s11172-011-0100-4
日期:2011.4
Electrochemical method for the evaluation of antioxidative activity of compounds based on their reaction with the stable radical, 2,2-diphenyl-1-picrylhydrazyl, was suggested with monitoring of the reaction by cyclic voltammetry (CVA). Antioxidative properties of new ferrocene derivatives Fc(L)R (where Fc is the ferrocenyl, R is the fragment of 2,6-di-tert-butylphenol or its aromatic analog, L is the spacer) were studied. Anodic oxidation of the compounds Fc(L)R, which contain azomethine and 2,6-di-tert-butylphenol moities, proceeds in three steps, that suggests a possibility of intramolecular proton-coupled electron transfer process. Conjugates of ferrocene and 2,6-di-tert-butylphenol are efficient antioxidants.