A bifunctional acridine-based fluorescent sensor: ratiometric sensing of H2PO4− and obvious fluorescence quenching towards

Imidazolium Based Probes for Recognition of Biologically and Medically Relevant Anions

“…Gao et al reported probes 100–102 for recognition of H 2 PO 4 − and HSO 4 − in acetonitrile. Probe 100 on gradual addition of H 2 PO 4 − resulted in simultaneous decrease and increase in emission intensity at 430 and 480 nm with isoemissive point at 459 nm.…”

ChemInform Abstract: Anion Sensors as Logic Gates: A Close Encounter

“…Anions are deeply associated with vibrant applicationsi nv arious industrial, biological, chemical ande nvironmental processes [27,28] along with many other important aspects of chemistry. [29][30][31][32][33] Consequently,o rganic receptors with neutral binding, sites such as urea/thiourea, amide pyrrole, aminopyrrole, indole andh ydroxyl groups, [27,28,[34][35][36][37][38][39][40][41][42][43][44][45][46] with cationic units, such as ammonium, quinolinium, imidazolium andg uanidinium salts, [47][48][49][50][51] and sensors with active methylene groups [52][53][54] have been used for anion detection. In addition, anion-induced reactions, such as desilylation [55,56] and nucleophilic interactions, [57][58][59][60][61] have also been used for the anion detection.…”

Exploration of highly selective fluorogenic ‘on–off' chemosensor for H2PO4− ions: ICT‐based sensing and ATPase activity profiling

“…Moreover, dihydrogen phosphate anion (H 2 PO 4 − ) is one of the main equilibrium species in biological and chemical systems containing inorganic phosphate. Therefore, H 2 PO 4 − has become a research target for sensing . Conversely, excess H 2 PO 4 − in waterways, has been reported to be toxic .…”