Evaluation of the Relative Contribution of Electrostatic and Hydrophobic Effects on the Binding Constants of Some Co(III) Complexes Using Gel Filtration Technique


  • M.L.S. University, Chemistry Department, University College of Science, Udaipur, 313001, India


The binding constant, K, of [Co(en)3]3+, [CO(II)]2+, [Co(NH3)5Cl]2+, trans-[Co(en)2Cl2]+ and [Co(NH3)3 (NO2)3]0 defined in terms of the partitioning between bulk aqueous phase and micellar pseudophase, using gel filtration chromatography employing Sephadex G-25 fine and sodium dodecylsulphate, SDS. The variation of K with charge types is explained on the basis of the role of both electrostatic and hydrophobic effects.


Binding Constant, K, Partition Coefficient, Co Complexes.

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