Synthesis, structure, and properties of a novel naphthalene-derived fluorescent probe for the detection of Zn2+

Phenylethylamine Derivative of Calix[4]arene Schiff Base for Fluorometric Detection of Zinc Ion

“…PET occurs towards the aromatic ring via the unshared electron pair on the nitrogen donor in the C=N group in the structure of L. Emission occurs when this PET mechanism breaks down after the addition of Zn 2021), in their study, determined that there is a PET mechanism towards the aromatic ring through the imine group in the ligands they have prepared, and this is deteriorated with the addition of Zn 2+ to the medium [26,41,42]. In addition, due to the selective feature of the C=N structure, which is the chelating group, against transition metals [32], this PET mechanism is interrupted as a result of the interaction of the unshared electron pair on the nitrogen donor and the Zn 2+ ion, which occurs as a result of the interaction of the Zn 2+ ion after stimulation and the interaction of the Zn 2+ ion.…”

“…Therefore, many heavy metals such as Zn2+ ion need to be detected in a sensitive and selective way. In recent years, many different molecules have been studied in the literature for the optical detection of Zn 2+ ion by using benzothiazole [12,13], antracene [14], benzidine [15], triphenylamine [16,17], cyanobiphenyl [18], benzotriazole [19], tetrahydroquinazole [20], dinitrophenyl [21], thiophene [22], rhodanine [23], benzoimidazole [24], phenanthroline [25], naphthalene [26], 1,10-phenanthroline [27], BINOL [28] and sulphonamide [29]. Among these molecules, calixarenes play an important role.…”

Recent Developments in the Detection of Zn2+ Ions Using Schiff Base Probes

“…Li et al [49] Reported, a novel naphthalene-based Schiff base probe 3 (Figure 1) for the detection of Zn 2+ ions. This synthesized probe showed a turn-on fluorescent nature towards Zn 2+ ions.…”