Extractive-spectrophotometnc investigations on ternary ion-associated complexes between the vanadium(V) - 4-(2-pyridylazo)-resorcinol anionic chelate and some methoxybis(tetrazolium) cations

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dc.authorscopusid55945209100
dc.authorscopusid6507892320
dc.authorscopusid6602365285
dc.contributor.authorGavazov K.B.
dc.contributor.authorTürkyilmaz M.
dc.contributor.authorAltun Ö.
dc.date.accessioned2024-06-12T10:28:10Z
dc.date.available2024-06-12T10:28:10Z
dc.date.issued2008
dc.description.abstractThe formation and liquid-liquid extraction of ion-associated complexes between the vanadium(V) - 4-(2-pyridylazo)-resorcinol (PAR) anionic chelate and the cations of some methoxybis(tetrazolium) salts (MT2+), which contain different number of nitro groups {3,3>-(3,3'-dimethoxy-4,4'- biphenylene)bis[2,5-di(4-nitrophenyl)-2H-tetrazolium] chloride (Tetranitrotetrazolium Blue chloride, TNBT), 3,3'-(3,3'-dimethoxy-4,4'- biphenylene)bis[2-(4-nitrophenyl)-5-phenyl-2H-tetrazolium] chloride (Nitro Blue Tetrazolium chloride, NBT) and 3,3'-(3,3>-dimethoxy-4>4'-biphenylene)- bis(2,5-diphenyl-2H-tetrazolium) chloride (Tetrazolium Blue chloride, BTC)} have been studied. The optimal conditions for extraction in chloroform (pH, concentrations of the reagents, extraction time) and the composition of the complexes (V:PAR:MT=2:4:3) have been found. The equilibrium constants (the constants of extraction - KEx, the constants of distribution- KD, the constants of formation- P), and the recovery factors have been determined. The results show that a linear relationship exists between LogKnx and the number of nitro groups included in MT2+ (NNo2): the higher N No2. the lower LogKEx- A similar relationship has been established between Log? and NNO2- These relationships have been used to predict the values of LogKEx and Log? for new (uninvestigated) methoxybis(tetrazolium) ion-associated complexes. © 2008 Bulgarian Academy of Sciences, Union of Chemists in Bulgaria.en_US
dc.identifier.endpage69en_US
dc.identifier.issn0861-9808
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-62349092166en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage65en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14551/17118
dc.identifier.volume40en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofBulgarian Chemical Communicationsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject4-(2-Pyridylazo)-Resorcinol; Extraction; Ion-Association; Nitro Group; Tetrazolium Salt; Vanadiumen_US
dc.titleExtractive-spectrophotometnc investigations on ternary ion-associated complexes between the vanadium(V) - 4-(2-pyridylazo)-resorcinol anionic chelate and some methoxybis(tetrazolium) cationsen_US
dc.typeArticleen_US

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