A Calix[4]pyrrole Bearing a Quaternary Ammonium Group: A Fluoride-Selective Anion Receptor
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A calix[4]pyrrole (1) bearing a quaternary ammonium pendant via its meso phenoxy linker has been synthesized as the bromide salt form. It was revealed by 1H NMR spectroscopic analyses performed in DMSO-d6 that receptor 1 binds F- with high affinity and selectivity over other halide anions. The binding of receptor 1•Br- with F- and Cl- takes place by anion metathesis with the anions including F- and Cl-.
Abstract
A calix[4]pyrrole (1) bearing a quaternary ammonium pendant via its meso phenoxy linker has been synthesized as the bromide salt form. It was revealed by 1H NMR spectroscopic analyses performed in DMSO-d6 that receptor 1 binds F- with high affinity and selectivity over other halide anions. The binding of receptor 1•Br- with F- and Cl- takes place by anion metathesis with the anions including F- and Cl-.
참고문헌 (20)
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