Effect of Dielectric constants of Dioxane-Water mixtures on Proton-Ligand Dissociation constants (pK) and formation Constants of Cu (II) complexes with 1, 3-Diphenyl Thiazines pH-metrically at 0.1M ionic strength

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Effect of Dielectric constants of Dioxane-Water mixtures on Proton-Ligand Dissociation constants (pK) and formation Constants of Cu (II) complexes with 1, 3-Diphenyl Thiazines pH-metrically at 0.1M ionic strength

Author Affiliations

¹Department of Chemistry, Vidya Bharati Mahavidyalaya, C. K. Naidu road, Camp, Amravati, MS, INDIA

Res.J.chem.sci., Volume 3, Issue (9), Pages 77-79, September,18 (2013)

Abstract

The interactions between Cu(II) and nitro-phenyl thiazine(L), chlorodiphenyl-thiazine (L), chloro, 1,3.thiazine (L), 1,3 phenyl thiazine (L), and 1,3 diphenyl thiazine (L), have been investigated by pH-metric technique at 0.1M ionic strength and in different percentage of dioxone-water mixture with Cu(II)-1,3, diphenyl thiazine data obtained can be used to study the effect of dielectric constants on proton–ligand stability constant. It showed that Cu (II) forms 1:1 and 1:2 complexes with substituted thiazines. It could be also seen that pK and log k values are found to be increased with increasing the percentage of dioxane-water mixtures.

References

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[ref1] Mane G.V., Kolhatkar D.G. and Shinde L.P., pH – Metric studies in binary and ternary complexes of dicarboxylic acids and amino acids with some transition and inner transition metal ions, Journal of Chemical and Pharmaceutical Research,4(2), 1022-1027 (2012)

[ref2] Gharib F., Farajtabar A. and Bahmani F., Solvent effects on protonation constants of tryptophan in some aqueous aliphatic alcohol solutions, J. Chem. Eng. Data,55(1),327–332 (2010)

[ref3] Ramteke A.A. and Narwade M.L., Spectrophotometric Studies on stability constant of chlorosubstituted pyrazoles with Cu (II) Nd (III) and Tb (III) metal ions at 0.1 M Ionic strength, Der Chemica Sinica,3(4), 770-774, (2012)

[ref4] Meshram U.P., Narwade M.L. and Yaul A.R., Studies in formation constant of Al(III), Cr(III) and Fe(III) complexes with some substituted isoxazoline, pyrazole and pyrazoline pH-metrically, spectrophotometrycally and polarizibility constant refractometrically, J. Chem. Pharm. Res., 3(3), 77-82 (2011)

[ref5] Zaker Y.M., Hossain A. and IslamT.S.A., Adsorption kinetics of methylene blue onto clay fractionated from bijoypur soil, Bangladesh, Res. J. Chem. Sci., 3(2), 65-72 (2013)

[ref6] Hirpaye B.Y., Zekarias M.T. and Rao G.N., Chemical speciation studies of binary complexes of malonic acid with some essential biologically important metal ions in 1, 2-propanediol-water mixtures, Journal of Chemical and Pharmaceutical Research,4(3), 1725-1733 (2012)

[ref7] Raymond P., Peter P.R., Rajendran S. and Manivannan M., Investigation of corrosion inhibition of stainless steel by sodium tungstate patric, Res. J. Chem. Sci., 3(2), 54-58 (2013)

[ref8] Gaikwad M.N., Gaikwad S.T. and Rajbhoj A.S., Potentiometric study of menadione complexes with transition metals in DMSO-Water and DMF-Water medium, J. Chem. Bio. Phy. Sci. Sec., A2(4), 1651-1656 (2012)

[ref9] Zaida A.A., Farooquia M. and Janrao D.M., Study of stability constant of biological active molecules (drug) using potentiometric titration technique, J. Chem. Bio. Phy. Sci. Sec. A.,2(1), 67-81 (2012)

[ref10] Gangwar M.K. and Saxena A.K., Ultrasonic study of molecular interactions in binary mixtures of isopropylbenzene (Cumene) with Benzene, Toluene and Acetone at 303K, Res. J. Chem. Sci.,3(2), 27-30 (2013)

[ref11] Maldhure A.K., Agarkar S.S., Taywade R.K. and Wankhade R.S., Metal-ligand stability constants of Co(II), Ni(II) and Cu(II) metal ion complexes with N-(5-methyl-2-hydroxyacetophenone) - N’ - (2-hydroxyacetophenone)ethylenediamine at 0.1 M ionic strength pH metrically, Journal of Chemical and Pharmaceutical Research,4(8),3865-3868 (2012)

[ref12] Anderegg G., Delgado R., Felcman J., and Popov K., Critical evaluation of stability constants of metal complexes of complexones for biomedical and environmental applications, Pure Appl. Chem., 77(8),1445–1495 (2005)

[ref13] Patil S.S. and Mirgane S.R., Thermo acoustic study of acrylates with decane-1-ol, Res. J. Chem. Sci., 3(2), 73-78 (2013)

[ref14] Onigbinde A.O., Munson B. and Amos-Tautua B.M.W., Gas chromatography/ chemical ionization mass spectrometry of polyethylene glycol monoalkyl ethers,Res. J. Chem. Sci., 3(2), 4-9 (2013)