A new bifunctional Schiff base as a colorimetric and fluorescence sensor for Al3+ and CN−

A ratiometric chemosensor for Al3+ based on naphthalene-quinoline conjugate with the resultant complex as secondary sensor for F−: Interpretation of molecular logic gates

“…After report of a commercially available chemosensor (2-hydroxy-1-naphthaldehyde) for Al 3+ ion [24], a few of Schiff-base molecules based on 2-hydroxy-1-naphthaldehyde have been reported for selective detection of the metal ion [25][26][27][28][29][30]. A conjugate of 2-hydroxynaphthaldehyde and 8-aminoquinoline was used for fluorescence sensing of Al 3+ ion [31], spectrofluorimetric determination of different metal ions including Al 3+ and as sensors for Ni 2+ and acetate ions [32].…”

Fluorescent Schiff base sensors as a versatile tool for metal ion detection: strategies, mechanistic insights, and applications

“…13 and Table 2). 85 In methanol solution, sensor 16 exhibited weak emission at 550 nm (l ex = 316 nm). Fluorescence titration with Al 3+ revealed a prominent increase in emission intensity accompanied by a blue shift of the emission maxima from 550 nm to 448 nm (Dl shift = 102 nm).…”

A highly selective fluorescent sensor for the detection of Al3+ and CN− in aqueous solution: biological applications and DFT calculations

“…S3, ESI †), which is within the range of those (10 3 -10 9 ) previously reported for Al 3+ binding chemosensors. [74][75][76][77] The detection limit 78 of receptor 1 as a fluorescence sensor for the analysis of Al 3+ ions was found to be 2.01 mM (Fig. S4, ESI †).…”