Production of thiyl radicals and investigation of their reactions with oxygen and 2-sulfoethanethiosulfuric acid
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The kinetics of the oxidation of 2-aminoethanethiol, 3-aminopropanethiol, 4-aminobutanethiol, (dimethylamino)ethanethiol, and 2-mercaptoethanol by the 1,10-phenanthroline complex [Fe(phen)3]3+ were studied. The complex [Fe(phen)3]3+ only reacts with thiols containing a deprotonated mercapto group.
The stoichiometry and the reaction products in the 2-aminoethanethiol + [Fe(phen)3]3+ +oxygen system were studied.
2-Sulfo-1-ethanethiosulfuric acid can be used as reagent for thiyl radicals.
The differences between the processes occurring in the thiol+[Fe(phen)3]3++O2 system at pH > 1.5 and the reactions in which RS. radicals participate during radiolysis of the thiols in the presence of oxygen were determined.
KeywordsOxidation Oxygen Thiol Phen Dimethylamino
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