Title : ( Complexing ability of kryptofix5 with Ag+ cation in some binary mixed non-aqueous solvents )
Authors: Gholam hossein Ronaghi , Azar Hosseinzadeh attar ,
Full TextAbstract
The complexation reaction of 1,13-bis(8-quinolyl)-1,4,7,10,13-pentaoxatridecane (kryptofix5) with Ag+ cation was studied in acetonitrile-ethylacetate (AN-EtOAc), methanol-ethylacetate (MeOH-EtOAc), methanol-water (MeOH-H2O) and dimethylsulfoxide-ethylacetate (DMSO-EtOAc) binary mixed solvent solutions. The stoichiometry and the stability of the (kryptofix5-Ag)+ complex were determined conductometrically. The conductance data show that in more solvent systems, the stoichiometry of the complex formed between the ligand and Ag+ cation is 1:1 (ML). But in some solvent systems, a 1:2 complex [ML2] was formed in solutions.. The stability of (kryptofix5-Ag)+ complex is sensitive to the solvent composition and temperature. The values of standard thermodynamic parameters (ΔH0c, ΔS0c) were obtained from the temperature dependence of the stability constant using van’t Hoff plots
Keywords
, kryptofix5, Ag+ cation, non-aqueous solvents
@inproceedings{paperid:1022461,
author = {Ronaghi, Gholam Hossein and Hosseinzadeh Attar, Azar},
title = {Complexing ability of kryptofix5 with Ag+ cation in some binary mixed non-aqueous solvents},
booktitle = {18th Iranian Seminar of Analytical Chrmistry},
year = {2011},
location = {زاهدان, IRAN},
keywords = {kryptofix5; Ag+ cation; non-aqueous solvents},
}
%0 Conference Proceedings
%T Complexing ability of kryptofix5 with Ag+ cation in some binary mixed non-aqueous solvents
%A Ronaghi, Gholam Hossein
%A Hosseinzadeh Attar, Azar
%J 18th Iranian Seminar of Analytical Chrmistry
%D 2011
