Asian Journal of Chemistry, ( ISI ), Volume (24), No (8), Year (2012-6) , Pages (3375-3378)

Title : ( Complexation Study of N-Phenylaza-15-Crown-5 with Cd2+ Cation in Binary Mixed Non-aqueous Solvents )

Authors: Glamhossein Ronagi , somayeh tarahomi , masomeh karimi iraj ,

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Abstract

The complexation reaction of N-phenylaza-15-crown-5 (PhA15C5) with Cd2+ cation was studied in acetonitrile-methanol, acetonitrilebutanol, acetonitrile-ethylacetate, acetonitrile-nitromethane and methanol-propylencarbonate binary solvent solutions, at different temperatures by conductometric method. The stability constant of the resulting 1:1 complex at each temperature was determined using a computer fitting conductance-mole ratio data. A non-linear relationship was observed for changes of log Kf of (PhA15C5.Cd)2+ complex versus the composition of the binary mixed solvents. The corresponding standard thermodynamic parameters (DHºc, DSºc) were obtained from temperature dependence of the stability constant. The results show that the complexation reaction is enthalpy destabilized but entropy stabilized.

Keywords

, N-Phenylaza-15-crown-5, Cd2+ cation, Mixed non-aqueous solvents, Conductometry
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@article{paperid:1030482,
author = {Ronagi, Glamhossein and Tarahomi, Somayeh and Karimi Iraj, Masomeh},
title = {Complexation Study of N-Phenylaza-15-Crown-5 with Cd2+ Cation in Binary Mixed Non-aqueous Solvents},
journal = {Asian Journal of Chemistry},
year = {2012},
volume = {24},
number = {8},
month = {June},
issn = {0970-7077},
pages = {3375--3378},
numpages = {3},
keywords = {N-Phenylaza-15-crown-5; Cd2+ cation; Mixed non-aqueous solvents; Conductometry},
}

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%0 Journal Article
%T Complexation Study of N-Phenylaza-15-Crown-5 with Cd2+ Cation in Binary Mixed Non-aqueous Solvents
%A Ronagi, Glamhossein
%A Tarahomi, Somayeh
%A Karimi Iraj, Masomeh
%J Asian Journal of Chemistry
%@ 0970-7077
%D 2012

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