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The effect of magnetic field on the stability of (18-crown-6) complexes with potassium ion
Authors:Eshaghi Z  Gholizadeh M
Institution:a Chemistry Department, Center of Fariman, Payam-e Noor University, Iran
b Chemistry Department, Sabzevar Teacher Training University, P.O. Box 161, Sabzevar, Iran
Abstract:Macrocyclic polyethers are ligands with selectivity for metal ions. In order to understand the interactions between ligand, ion and solvent we resorting to study of magnetic field effect on ion-macrocyclic complexes. Therefore, we studied the complexation between 18-crown-6 and potassium ion in water through the conductometry technique (in 25+0.05 °C) by a nonlinear least-square program (Genplot) under magnetic field.We observed that stability constants of complexes in the presence of the magnetic field, were decreased. Like-wise, we observed that, magnetic field influenced on ion, solvent and ligand one by one.
Keywords:Macrocyclic polyether  18-Crown-6  Metal ion  Magnetic field stability constant
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