Fluorescence staining of salicylaldehyde azine, and applications in the determination of potassium tert-butoxide

Abstract

Salicylaldehyde azine (1), with an aggregation-induced emission (AIE) function, was synthesized from salicylaldehyde and characterized by nuclear magnetic resonance, high resolution mass spectrometry, and X-ray single crystal diffraction.

Designing model imino bifunctional chelators for radiopharmaceuticals –in vitroantitumor activity, photoluminescence and structural analysis

“…The excitation feature at ∼280 nm occurred in all measured spectra and is an artefact due to the excitation correction in this region. The similarity of the luminescence properties of these compounds with each other and, for example, N-salicylidene-o-aminophenol (saphH2) and its derivatives, 49 or salicylaldehyde azine 50 suggests that the salicylidene moiety primarily determines the spectral properties which are not strongly affected by the bonded biological directing functional groups. This is in contrast to a report for N-(pyrene)-salicylaldimine for which the luminescence properties were attributed to the strongly fluorescent pyrene moiety.…”

Aggregation-induced emission-active azines for chemosensing applications: a five-year update

“…In previous years, several azine-based probes with appropriate functionalities have been utilized for the selective detection of a number of anions such as F − , 25 CN − , 69–71 and t BuO − . 72…”

“…68e Hence their selective and sensitive detection has gained considerable attention. In previous years, several azine-based probes with appropriate functionalities have been utilized for the selective detection of a number of anions such as F − , 25 CN − , 69-71 and t BuO − 72. Among recent developments, Shen et al synthesized a diphenylphosphinate-protected salicylaldehyde-based azine chemodosimeter(33) and utilized it for the detection of peroxynitrite (ONOO − ) ions [Fig.4Aand Table2, entry 1] 73.…”

Base-induced multi-state fluorescence of a trefoil-shaped salicylaldehyde azine derivative

“…SA units have been investigated previously as typical fluorophores displaying aggregation-induced emission (AIE). 16 Because of the acidity of the phenolic OH groups in the SA skeleton, one-step deprotonation and fluorescence change mediated by base have been reported for simple symmetric SA derivatives. 16 b , c ,17 Based on the deprotonation ability and fluorescence of the SA substructure, we synthesized the more complicated unsymmetrical trefoil-shaped SA derivative 1 with the anticipation that it might display multi-state fluorescence upon varying the concentration of base ( Fig.…”