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Benzothiadiazoyl-triazoyl cyclodextrin: a selective fluoroionophore for Ni(II) |
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| Authors: | Stephane Maisonneuve Juan Xie |
| Institution: | a PPSM, Institut d'Alembert, ENS Cachan, CNRS, UniverSud, 61 av President Wilson, F-94230 CACHAN, France b Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China |
| Abstract: | A new multichromophoric cyclodextrin substituted with benzothiadiazoyl-triazole moiety has been synthesized by a one-pot click reaction between azido-cyclodextrin and TMS-ethynyl benzothiadiazole in the presence of TBAF. This fluorescent chemosensor exhibits a high selectivity to Ni2+ among a series of cations in CH3CN solution. The association constant for the 1:1 complex was determined to be 2.88×107 M−1. |
| Keywords: | Cyclodextrin One-pot click chemistry Benzothiadiazole Ni(II) Fluoroionophore Multichromophoric system |
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