Effect of ionic strength on complex equillieria between lanthanide metal ions and substituted pyrazole in dioxane -water mixture | Zendy

G. H. Murhekar | Zendy; Maroti L. Narwade | Zendy; A. R. Raut | Zendy

Open Access

Effect of ionic strength on complex equillieria between lanthanide metal ions and substituted pyrazole in dioxane -water mixture

Author(s) -

G. H. Murhekar,

Maroti L. Narwade,

A. R. Raut

Publication year - 2012

Publication title -

material science research india

Language(s) - English

Resource type - Journals

eISSN - 2394-0565

pISSN - 0973-3469

DOI - 10.13005/msri/060238

Subject(s) - pyrazole , lanthanide , ionic strength , metal ions in aqueous solution , ion , metal , ionic bonding , inorganic chemistry , chemistry , medicinal chemistry , organic chemistry , aqueous solution

The proton ligand stability constants of 3 (4’-chlorophenyl) 4benzoyl -5 (2-hydroxy phenyl) pyrazole (L) and metal ligand stability constants of Pr (III), Nd (III) and Sm (III) complexes have been investigated at 0.02, 0.04, 0.06, 0.08 and 0.1 M ionic strength in dioxane-water mixture, pH metrically. From the values of pK and logK, the values of thermodynamic constants at zero ionic strength can be calculated. The value of pK and logK are found to be decreased with increasing ionic strengths of 1M KNO3 solution

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