Recognition of Al3+ based on a naphthalene-based “Off–On” chemosensor in near 100% aqueous media

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].…”

Characterization of a highly Al3+‐selective fluorescence probe based on naphthalimide‐Schiff base and its application to practical water samples

“…The changes in the absorption spectra of L as a function of the concentration of Al 3+ were given in Figure . From Figure (a), it can be seen that the absorbance of 279 and 450 nm gradually increased with an increasing concentration of Al 3+ ion and these can be ascribed to the π – π * transition of the benzene ring . Moreover, these bands slightly red shifts about 5 nm and blue shifts about 10 nm, respectively.…”

Resonance‐Assisted Hydrogen Bonding as a Driving Force in Synthesis and a Synthon in the Design of Materials

“…[331][332][333][334][335][336][337][338] The RAHB systemi nt hese probes is ap rerequisite for an ESIPT process, which may enhance or inhibit the intensity of analytic signal depending on the system.T he ESIPTp rocess commonly involves the transfer of ap roton donor to an adjacent proton acceptort hrough as ixmembered ring of hydrogen-bonding configuration (tautomerization). [331][332][333][334][335][336][337][338] The RAHB systemi nt hese probes is ap rerequisite for an ESIPT process, which may enhance or inhibit the intensity of analytic signal depending on the system.T he ESIPTp rocess commonly involves the transfer of ap roton donor to an adjacent proton acceptort hrough as ixmembered ring of hydrogen-bonding configuration (tautomerization).…”

“…A number of RAHB‐containing chemosensors have also served as useful tools for the detection of metal ions owing to their low cost, sensitivity, selectivity, and capacity for rapid, real‐time monitoring . The RAHB system in these probes is a prerequisite for an ESIPT process, which may enhance or inhibit the intensity of analytic signal depending on the system.…”