Electrophoretic Studies of Binary and Ternary Complexes of Some Metal ions with Alizarin
نویسندگان
چکیده
Quantitative studies of complex formation from the determination of stability constants of the binary complexes of metal (II)/(III)alizarin and also the mixed complexes of metal (II)/(III)alizarin-NTA have been described using paper electrophoretic technique. The stability constant of metal-(II)/(III)-alizarin are found to be 105.14, 104.84, 104.44 and 104.14 and mixed complexes of metal (II)/(III) have been found 105.40,105.10,105.00 and 104.70 for Cr(III), Cu(II),Ni(II) and Zn(II) respectively at 350C and ionic strength I=0.1 mol dm-3 (HClO4).
منابع مشابه
Potentiometric Study of Binary and Mixed Complexes of Imidazole, Histamine, Histidine and Diacetyl Monooxime with Some Transition Metal Ions in Aqueous Solution
The complexation reactions between diacetyl monooxime (Damo), imidazole (Him), histamine (Hist) and histidine (His) with Co2+, Ni2+ and Cu2+ were studied potentiometrically in aqueous solution at 25 °C and m= 0.5 M KNO3. The overall stability constants log b's of species were obtained by computer refinement of p...
متن کاملSolution state studies on thermodynamic parameters and complexation behavior of inner transition metal ions with creatinine in aqueous and mixed equilibria
The determination of formation constants of binary inner transition metal complexes where M=Y(III) or La(III) or Ce(III) or Pr(III) or Nd(III) or Sm (III) or Gd (III) or Dy (III) or Th(IV) andL = Creatinine have been carried out using Irving–Rossotti titration technique in aqueous mediaat different temperatures and at ionic strength. To understand more about the nature ofequilibrium involving i...
متن کاملPotentiometric and Thermodynamic Studies of Binary and Ternary Transition Metal(II) Complexes of Imidazole-4-acetic Acid and Some Bio-relevant Ligands
Proton–ligand association constants of imidazole-4-acetic acid (IMA) were determined potentiometrically in aqueous solution at different temperatures in the range 15–35 C. The stepwise stability constants of IMA with some selected bivalent transition metal ions were also determined in 0.1 mol dm NaNO3. The stability of the complexes follows the trend Cu [ Ni [ Co [ Mn, which is in agreement wit...
متن کاملStability of binary and ternary copper(II) complexes with 1,10-phenanthroline, 2,2'-bipyridyl and some alpha-amino acids in aqueous medium.
Interactions of certain amino acids with some metal ions have significant consequences in biological systems. Metal ions can act as co-factors in the regulation of enzymatic reactions. Interactions of metal ions with amino acid side chains or with different organic complexes is also essential for many biological events. In this study, the stability constants of 1 : 1 : 1 ternary complexes of Cu...
متن کاملSpectrophotometric Study of New Schiff Base Complexes with Some Metal Ions in Methanol Solution
The complexation reactions between N,N'-3,6-dioxa-1,8-octanebis (salicylaldimine) [saldioxen(I)] and Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) were studied spectrophotometrically in methanol solution at 25 °C. The stoichiometry of the complexes were obtained as 2:1 and 1:1 sadioxen-metal ion using mole ratio method. The formation constants of the complexes were determined, a...
متن کامل