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The stoichiometry and thermodynamic stability of vanadium(IV/V) and copper(II) complexes of pyridoxal thiosemicarbazone and pyridoxal-N3,N3-dimethylthiosemicarbazone have been determined by pH-potentiometry (VIVO), EPR (VIVO/CuII), UV–Vis (CuII, VIVO and VV) and 51V NMR spectroscopy (VV) in 30% (w/w) dimethyl sulfoxide/water solvent mixture. In all cases, mono-ligand complexes are formed in different...
The effects of methyl substituents at different positions on the 2-formylpyridine thiosemicarbazone (FTSC) core structure on various physico-chemical properties were investigated. Proton dissociation processes, aqueous solution stability, isomer distribution in different solvents, fluorescence properties and lipophilic character of FTSC, pyridine-2-carboxaldehyde N4,N4-dimethylthiosemicarbazone (PTSC),...
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