期刊
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
卷 84, 期 9, 页码 1761-1766出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1070363214090205
关键词
organometallic compounds; antimony(V) catecholates; redox-active ligands; electrochemistry; antiradical activity
资金
- Russian Federation [MK-445.2014.3]
- Russian Foundation for Basic Research [14-03-00478]
Triarylantimony(V) catecholate complexes were synthesized by the oxidative addition of 3,6-di-tert-butyl-4,5-dimethoxy-o-benzoquinone to triarylstibines. The electrochemical properties and antiradical activity of the synthesized compounds were studied. According to cyclic viltammetry data, the complexes are oxidized via two consecutive quasi-reversible stages. Introduction of halogen atoms in para-position of phenyl groups at Sb(V) causes anodic shifts of the oxidation potentials and enhances stability of the mono- and dicationic forms of the compounds, which form in the course of electrochemical transformations. Triarylantimony(V) catecholate complexes exhibit appreciable antiradical activity in the auto-oxidation of oleic acid. In was found that the inhibitory activity of the complexes depends on their redox potential.
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