Asian Journal of Research in Chemistry

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Study of Complexation Behavior of Ag(I) Ion with Some Benzocrown Ether Derivatives by Solvent Extraction Method


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1 PG Department of Chemistry, Ranchi College, Ranchi-834008
     

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The crown ethers, cryptands, podands and lariat ethers are excellent hosts for accommodating metal ions having similar cationic size as guest ion. The interaction of organic cation donor molecule with crown ethers, cryptands and lariat ethers has not been studied so far. Crown ethers can accommodate cations into their cavities via an ion-dipole interaction. It has been found that size factor of crown ether cavity and cations diameter largely favor the interaction and formation of complexes. In general, oxygen crown ethers are effective for the extraction of alkali and alkaline earth metal ions. The solvent extraction method is extensively used to evaluate the cation binding behavior of crown ethers. Present paper describes synthesis of some benzocrown ether derivatives and their solvent extraction with organic salt of silver ion. In this method, silver ion was extracted by crown ethers from a water phase into an organic phase. The extractability percentage of silver ion (Ag<SUP>+</SUP>) by synthesized crown ethers is reported in this paper.

Keywords

Picrate Extraction, NaTNP, AgTNP
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  • Study of Complexation Behavior of Ag(I) Ion with Some Benzocrown Ether Derivatives by Solvent Extraction Method

Abstract Views: 228  |  PDF Views: 2

Authors

Rajeev Ranjan
PG Department of Chemistry, Ranchi College, Ranchi-834008

Abstract


The crown ethers, cryptands, podands and lariat ethers are excellent hosts for accommodating metal ions having similar cationic size as guest ion. The interaction of organic cation donor molecule with crown ethers, cryptands and lariat ethers has not been studied so far. Crown ethers can accommodate cations into their cavities via an ion-dipole interaction. It has been found that size factor of crown ether cavity and cations diameter largely favor the interaction and formation of complexes. In general, oxygen crown ethers are effective for the extraction of alkali and alkaline earth metal ions. The solvent extraction method is extensively used to evaluate the cation binding behavior of crown ethers. Present paper describes synthesis of some benzocrown ether derivatives and their solvent extraction with organic salt of silver ion. In this method, silver ion was extracted by crown ethers from a water phase into an organic phase. The extractability percentage of silver ion (Ag<SUP>+</SUP>) by synthesized crown ethers is reported in this paper.

Keywords


Picrate Extraction, NaTNP, AgTNP

References