polarographic behaviour
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2021 ◽  
Vol 9 (02) ◽  
pp. 751-765
Author(s):  
Renu Saraswat ◽  
◽  
Devesh Saraswat ◽  

Analysis of the complexes formed by 4-methoxybenzaldehyde thiosemicarbazone with Manganese (II), Iron (II),Cobalt (II) ,Nickel (II) and Zinc(II) metal ions was made through the polarographic technique. 4-methoxybenzaldehyde thiosemicarbazone was obtained by the reaction of hydrazinecarbothioamide with para-methoxybenzaldehyde in ethyl alcohol. Polarographic technique is best suited for the study of coordination complexes and their substitution reactions and more significantly the technique is especially useful in calculating stability constant of complexes that are formed by direct combination of metal ion and the ligands. A sharp change is observed in the E1/2 values of the transition metal ions in presence of the ligand indicating complexation .Irreversible polarographic behaviour has been shown in all the compounds studied and kinetic parameter αn and ko f ,h have been calculated .All the complexes prepared were found to have 1:2 stoichiometry.



2010 ◽  
Vol 95 (4) ◽  
pp. 229-239 ◽  
Author(s):  
Fouad Taha ◽  
H. A. El Shayeb ◽  
A. A. Abd El Gaber ◽  
A. M. El Roudi


2010 ◽  
Vol 100 (6) ◽  
pp. 441-444
Author(s):  
V. Lopez-Arza ◽  
P. Valiente ◽  
M. Jimenez ◽  
A. Sanchez ◽  
J. Rodriguez


2010 ◽  
Vol 89 (5) ◽  
pp. 327-330
Author(s):  
M. Tiwari ◽  
P. T. Malshe ◽  
R. Kaushal




2010 ◽  
Vol 95 (3) ◽  
pp. 169-175
Author(s):  
A. Sánchez Misiego ◽  
F. Salinas ◽  
A. Guiberteau Cabanillas ◽  
I. Durán Merás


2010 ◽  
Vol 89 (12) ◽  
pp. 1015-1021 ◽  
Author(s):  
M. V. Damle ◽  
M. Tiwari ◽  
P. T. Malphe ◽  
R. Kaushal


2010 ◽  
Vol 94 (4) ◽  
pp. 245-251
Author(s):  
J. Martinez Calatayud ◽  
P. Fagoaga Caridad ◽  
F. Vicente Pedrós


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