• Mohd. Junaid
• S.E Bhandarkar
• Shahana Khan
• B.P Khobragade

The interactions of Cu(II), Ni(II) and Cd(III) metal ions with 3-(4-chloro-1-hydroxynapthalene-2-yl)-5-(5-substituted furan-2-yl), 4-5 dihydro pyrazole-1-carbothioamide and 3-(4-chloro-1-hydroxynapthalen-2-yl)-5-(5-substituted furan-2-yl) pyrazole-1-carbothioamide have been studied at 0.1 M ionic strength in 70 % Dioxane-water mixture by Bjerrum method. The values of proton-ligand stability constant (pK) and metal-ligand stability constants (log k) were calculated and compared by using the data obtained. The effects of substituent were studied from estimated data. The pK & log k values were also used to study the effect of substituents.

pyrazole, Bjerrum method, proton-ligand stability constant, metal-ligand stability constant.

"pH-METRIC STUDIES ON STABILITY CONSTANTS OF THE COMPLEXES OF SUBSTITUTED PYRAZOLES AND PYRAZOLINES WITH Cu(II), Ni(II) AND Cd(II) METAL IONS IN 70% DIOXANE-WATER MIXTURE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.243-247, February-2020, Available :http://www.jetir.org/papers/JETIRDI06047.pdf

"pH-METRIC STUDIES ON STABILITY CONSTANTS OF THE COMPLEXES OF SUBSTITUTED PYRAZOLES AND PYRAZOLINES WITH Cu(II), Ni(II) AND Cd(II) METAL IONS IN 70% DIOXANE-WATER MIXTURE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp243-247, February-2020, Available at : http://www.jetir.org/papers/JETIRDI06047.pdf