Novel 1,10-phenanthroline - di-2-picolylamine scaffold as a selective chemosensor for copper and cyanide ions

Recent endeavours in the development of organo chromo-fluorogenic probes towards the targeted detection of the toxic industrial pollutants Cu2+ and CN−: recognition to implementation in sensory device

“…Therefore, the metal displacement strategy acts as an indirect approach for the detection of cyanide. 96 Based on this strategy, Kaur et al 97 developed a phenanthroline-di-2-picolylamine (DPA)-based efficient cyanidedetecting chemosensor, probe 68, based on the copper-cyanide affinity. 68 could selectively detect Cu 2+ through the pyridine nitrogen of DPA, which could be monitored by the gradual bathochromic shift in the 265 nm absorption band to 286 nm.…”

The Role of 8-Amidoquinoline Derivatives as Fluorescent Probes for Zinc Ion Determination

“…Aside from these interferences, the sensing results were influenced by the other factors such as the environment of the system including solvent used, type and pH of the buffer, the concentration of Zn 2+ ions present compared to the other ions, solubility properties, and of course, the characteristic and behavior of the probe itself. They are so many receptors used as fluorophore as binding sites such as di-2picolylamine (DPA) [55,56] quinoline [57,58], bipyridine [59][60][61][62], acyclic and cyclic polyamines [63,64], iminodiacetic acid [65,66], triazole [67][68][69], and Schiff-base receptors [70] ( Figure 1). However, it is necessary to notice that few compounds fluoresce by itself or fluoresce after the interaction with the target.…”

Investigating the Potential of 8-Amidoquinoline Derivatives as a Fluorescent Probe for Zinc Detection: A Systematic Literature Review

“…Considering that Zn 2+ is spectroscopically silent due to its d 10 electronic configuration, fluorescent chemosensors of Zn were extensively studied. That are so many receptors used as fluorophore as binding sites such as di-2-picolylamine (DPA) [23][24][25], quinoline [25][26][27], bipyridine [28][29][30][31], acyclic and cyclic polyamines [29,32,33], iminodiacetic acid [34][35][36], triazole [37][38][39], and Schiff-base receptors [40][41][42].…”