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- W2621871851 abstract "A new fluorescence receptor calix[4]pyrrole-N-(quinoline-8-yl) acetamide (CAMQ) containing a pyrrolic ring connected via the meso-position was synthesized, purified and characterized by elemental analysis, NMR and mass spectroscopy. This compound was examined for its fluorescence properties towards different metal ions e.g. Ag(I), Hg(II), Co(II), Ca(II), Ni(II), Zn(II), Cr(II), Ba(II), Fe(II), Cu(II), Pb(II)and Mg(II) ions by spectrophotometry and spectrofluorometry. It was concluded that the compound (CAMQ) possessed significantly enhanced selectivity for Pb(II) and Cu(II) ions in dimethyl sulfoxide (DMSO) even at very low concentrations (1 μM). It exhibit 'turn-on' fluorescence when exposed to Pb(II) and Cu(II) and did so in preference to other metal ions. The binding constants, stoichiometry and quantum yields have been determined. The quenching mechanism was assessed using the Stern-Volmer equation and was also discussed." @default.
- W2621871851 created "2017-06-15" @default.
- W2621871851 creator A5041563883 @default.
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- W2621871851 date "2017-06-07" @default.
- W2621871851 modified "2023-09-23" @default.
- W2621871851 title "A switch-off fluorescence probe towards Pb(II) and cu(II) ions based on a calix[4]pyrrole bearing amino-quinoline group" @default.
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- W2621871851 doi "https://doi.org/10.1002/bio.3336" @default.
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