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Paper Information

Journal:   JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)   2014 , Volume 11 , Number 4; Page(s) 947 To 952.
 
Paper: 

EFFECT OF MAGNETIC FIELD ON PROPERTY OF A NON-AQUEOUS SOLVENT UPON COMPLEX FORMATION BETWEEN KRYPTOFIX 22DD WITH YTTRIUM (III) CATION

 
 
Author(s):  GHOLIZADEH MOSTAFA, ROUNAGHI GHOLAM HOSSIEN*, RAZAVIPANAH IMAN, SALAVATI MOHAMMAD REZA
 
* DEPARTMENT OF CHEMISTRY, FACULTY OF SCIENCES, FERDOWSI UNIVERSITY OF MASHHAD, MASHHAD, IRAN
 
Abstract: 

To understand the effect of a magnetized solvent upon complexation processes between the metal ions and the ligands, we studied the complexation reaction between Y+3 cation with the kryptofix 22DD, in non-magnetized and magnetized methanol solvents at different temperatures using the conductometric method. Addition of kryptofix 22DD to the cation solution causes a continuous increase in the molar conductivities which indicates that the mobility of the complexed cation is higher than the uncomplexed one in both non-magnetized and magnetized methanol solvents. The conductance data show that the stoichiometry of the complex formed between the ligand and Y3+cation is 1:1(M:L). The value of stability constant of (kryptofix 22DD.Y)3+ complex was determined from conductometric data using a non-linear least-square program (GENPLOT). The results obtained in this investigation, show that the stability constant of the complex decreases when we use magnetized methanol solvent.

 
Keyword(s): MAGNETIC FIELD EFFECT, COMPLEXATION, KRYPTOFIX 22DD, YTTRIUM (III) CATION, METHANOL, CONDUCTOMETRY
 
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