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Equilibrium studies on binary complex formation of lanthanide ions La(III), Pr(III), Sm(III), Gd(III) and Dy(III) with vitamin├ó┬?┬?U at constant temperature | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X
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Abstract

Equilibrium studies on binary complex formation of lanthanide ions La(III), Pr(III), Sm(III), Gd(III) and Dy(III) with vitamin├ó┬?┬?U at constant temperature

Author(s): J. J. Vora, J. G. Gurjar, R. H. Chaudhari, R. A. Patel and D. R. Patel

The determination of formation constant of Binary Complexes(ML) , where M = La(III), Pr(III), Sm (III), Gd (III) And Dy (III) and L = Vitamin-U have been carried out using Irving- Rossotti titration technique in aqueous media at 25 ± 0.1ºC temperature . The ionic strength μ = 0.2M was held constant using sodium per chlorate as an electrolyte. The stability constant s of trivalent lanthanide vitamin-U complexes were calculated and explained. The mechanism, through which Protonation and complex formation takes place, has been suggested.


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