Potentiometric Studies on Complexation Equilibria between Dimethyltin (IV) and Dioctyltin (IV) Cations with N-N Donor Ligands
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
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ISSN: 2319-7064

Research Paper | Chemistry | India | Volume 5 Issue 1, January 2016

Potentiometric Studies on Complexation Equilibria between Dimethyltin (IV) and Dioctyltin (IV) Cations with N-N Donor Ligands

Pratibha Paliwal Bhatele

The interaction of dimethyltin [DMT] (IV) and dioctyltin [DOT] (IV) cations with 2, 2-bipyridyl and 1, 10-phenanthroline were performed potentiometrically for 11 systems in 10 % alcohol medium at three ionic strengths (= 0.05, 0.10, 0.15M) and at three different temperatures 20C, 30C, 40C. The experimental data are subjected to computational analysis in order to evaluate thermodynamic formation constants [ML, ML (OH) and ML (OH) 2] and other thermodynamic parameters (G, H and S ). Stability constants of generalized species (SCOGS) computer program was employed for computation.The concentration distribution of the various complex species in solution has been evaluated as a function of pH and is presented in the form of speciation curves. The studies intimate that 2, 2-bipyridyl formed complexes of low stability than 1, 10-phenanthroline. This is attributed to the difference in ring structure of two ligands.

Keywords: DMT IV, DOT IV, Thermodynamic formation constants, SCOGS

Edition: Volume 5 Issue 1, January 2016

Pages: 1204 - 1208

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Pratibha Paliwal Bhatele, "Potentiometric Studies on Complexation Equilibria between Dimethyltin (IV) and Dioctyltin (IV) Cations with N-N Donor Ligands", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=NOV153061, Volume 5 Issue 1, January 2016, 1204 - 1208

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