Fluorescent chemosensor based-on naphthol–quinoline for selective detection of aluminum ions

Two Schiff-base fluorescent sensors for selective sensing of aluminum (III): Experimental and computational studies

“…To get insight into the proposed binding mode, the binding mode of the sensors and Al 3+ carried out density functional theory (DFT) calculations with B3LYP/6-31G(d) method [33][34][35] According to the above discussion and the relevant literature reports [36][37][38][39][40], we proposed a rational coordinated mode that Al 3+ is hexa-coordinated with one tridentate ligand, one bidentate nitrate and one monodentate ethanol. As depicted in Fig.…”

Development of a simple pyrazine-derived “turn on” Al 3+ fluorescent sensor with high selectivity and sensitivity

“…S5), and the detection limit of this sensor 1 for Al 3+ was estimated as 10 À7 mol/L level conducted by using fluorescence spectra (Fig. S6), which was lower than some reported Al 3+ selective and sensitive fluorescent sensors [37][38][39][40]. It demonstrated that the detection limit was low enough for this sensor to detect and control Al 3+ in the environmental and biological systems.…”

A chromone Schiff-base as Al(III) selective fluorescent and colorimetric chemosensor

“…S7). Upon addition of 0.05 to 0.25 ȝM Al 3+ to the sensor MCIH, fluorescence emission enhancement demonstrated that this sensor could detect Al 3+ at 5×10 -8 M level, which is low for the detection of Al 3+ ions found in many chemical systems [35][36]. Fluorescence quantum yield measurements were carried out for the sensor to understand its fluorescence behavior observed.…”