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The complex formation and the ion-association of the ion-pair formed between the anionic chelate of molybdenum(VI)‒3,5-dinitrocatechol (3,5-DNC) with the cation of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) in the liquid–liquid extraction system Mo(VI)‒3,5-DNC‒MTT‒H2O‒CHCl3… Click to show full abstract
The complex formation and the ion-association of the ion-pair formed between the anionic chelate of molybdenum(VI)‒3,5-dinitrocatechol (3,5-DNC) with the cation of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) in the liquid–liquid extraction system Mo(VI)‒3,5-DNC‒MTT‒H2O‒CHCl3 was studied by spectrophotometry. The optimum conditions for the chelate formation and extraction of the ion-associated complex Mo(VI)‒3,5-DNC‒MTT were established. The molar ratio of the components in the ion-associated complex Mo(VI)–3,5-DNC–MTT was determined by independent methods. The association process in aqueous phase and the extraction equilibria were investigated and quantitatively characterized. The following key constants of the processes were calculated: association constant, distribution constant, extraction constant and recovery factor. Based on this, a reaction scheme, a general formula and a structural formula of the complex were suggested.
Journal Title: Russian Journal of Inorganic Chemistry
Year Published: 2019
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