https://orcid.org/0000-0002-6832-447X
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Abstract
The radical scavenging activities of salicylaldehyde thiosemicarbazone and its copper(II) and cadmium(II) complexes were evaluated by in vitro experiments in the reaction with 2,2'-diphenyl-1-picrylhydrazyl. Salicylic aldehyde thiosemicarbazone complex with Cu(II) shows significantly higher radical-scavenging activity than Cu2+ ions, salicylaldehyde thiosemicarbazone, and Cd(II) complex. Electrochemical, EPR and kinetic studies revealed that the high rate of reaction and efficiency is due to the mechanism of electron transfer, which is enhanced by the synergetic effect of the ligand structure and the ability of the copper ion to exhibit variable valencies.
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No potential conflict of interest was reported by the author(s).
Additional information
Funding
YK was partially supported by MESU (grant number 0123U100858). This work was supported by a grant from the Simons Foundation (Award Number: 1030286, YK, YA). D.V. Savchenko acknowledges Operational Program Research, Development and Education financed by European Structural and Investment Funds and the Czech Ministry of Education, Youth and Sports, Project SOLID21 CZ.02.1.01/0.0/0.0/16_019/0000760.