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Two novel luminescent europium (III) tris(dibenzoylmethane) (Eu(dbm) 3 ) with 2-indole-3-yl-imidazo [4,5-f]-1,10-phenanthroline (a) and 2-(2-nitrophenyl)-imidazo [4,5-f]-1,10-phenanthroline (b) complexes were prepared as anion receptors. It was found that Eu(dbm) 3 (a), which give rise to intense yellow emission, can selectively recognize F − and H 2 PO 4−...
Lanthanide tris(2-thenoyltrifluoroacetonate) complex based on 2-(3,5-difluorophenyl)imidazo [4,5-f]-1,10-phenanthroline (1) with red luminescence acted as effective receptors for F − and AcO − anions. Spectroscopic studies of UV–vis, fluorescence and NMR present that the sensor exhibits striking emission changes to fluoride (green) and acetate anions (yellow-red to green) respectively...
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