First Application of Calixarenes as Extractants in Room-temperature Ionic Liquids
Authors:
- 14 February 2004
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 33 (3) , 320-321
Abstract
We synthesized a calix[4]arene bearing pyridine, which has a similar molecular structure to the constitutional unit of 3-methylimidazolium hexafluorophosphate-based room-temperature ionic liquids. The pyridinocalix[4]arene was found to be soluble in ionic liquids, and this compound showed 230-fold extractability in ionic liquid over that in chloroform for silver ions.Keywords
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