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Paper Information

Journal:   JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)   SUMMER 2006 , Volume 16 , Number 60 (CHEMISTRY ISSUE); Page(s) 40 To 45.
 
Paper: 

SOLVENT EFFECT ON COMPLEXATION OF CS+ AND K+ CATIONS BY CALIX [4]-BIS-CROWN-6

 
 
Author(s):  KHAZAELI PARSA P., MAHMOUDIAN MASOUMEH, FATAHI FARNOUSH, AGHAEI KHEZRI M., ZARE KARIM
 
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Abstract: 

The complexive abilities of 1, 3- altemate calyx [4]-bis-crown-6 (L) towards alkali metal ions (K+ and Cs+) in different mixtures of methanol with waterhave been evaluated by UV/Vis spectroscopy. The results reveal that the ligand is capable to complex potassium and cesium ions with a 1:1 metal to ligand ratio. Although the stability constants of the complexes changes but the selectivity presented by L (Cs> K) in all studied mixed solvents doesn't differ from those observed in pure methanol.

 
Keyword(s): CALYX [4]CROWN, SOLVENT EFFECT, ALKALI CATIONS, SELECTIVITY
 
References: 
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