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نویسندگان
چکیده
Three fluorescent asymmetric bis-urea receptors (L1-L3) have been synthesised. The binding properties of L1-L3 towards different anions (fluoride, acetate, hydrogencarbonate, dihydrogen phosphate, and hydrogen pyrophosphate HPpi3-) have been studied by means of 1H-NMR, UVVis and fluorescence spectroscopies, single crystal X-ray diffraction, and theoretical calculations. In particular, a remarkable affinity for HPpi3has been observed in the case L1 (DMSO-d6/0.5%H2O) which also acts as a fluorimetric chemosensor for this anion. Interestingly, when L1 is included in cethyltrimethylammonium (CTAB) micelles, hydrogen pyrophosphate recognition can also achieved in pure water.
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