Voltammetric and Quantum Investigation of Selected Succinimides

摘要

A series of succinimide derivatives were studied using the cyclic and square wave voltammetry.Density function theory was used in order to determinate which of the structural parameters influencethe electrochemical activity. The quantum chemical calculations of the investigated succinimides werelinked with the experimental electrochemical data and used to propose the oxidation mechanism. Themost active among studied succinimides is 1,3-diphenylsuccinimide. The results obtained from thecyclic and square wave voltammetry and quantum chemical calculations indicate that the investigatedcompounds undergo oxidation by irreversible, diffusion controlled process including transfer of 1e–and 1 proton. The voltammetric and DFT results signify that the mechanism of electrochemicaloxidation of all compounds involve the conversion of carbonyl-methyne-phenyl segment or methylenegroup in free radical. This conversion proceeds by the loss of one proton one electron process.