《Effect of Substitution at Amine Functionality of 2,6-Diaminopyridine-Coupled Rhodamine on Metal-Ion Interaction and Self-Assembly》 was written by Panja, Santanu; Mondal, Subhendu; Ghosh, Sourav; Ghosh, Utpal; Ghosh, Kumaresh. Product Details of 141-86-6 And the article was included in ACS Omega in 2020. The article conveys some information:
2,6-Diaminopyridine-coupled rhodamines I and II have been synthesized, and the effect of substitution on amine functionality toward metal-ion interactions and self-assembly is thoroughly investigated. Both the compounds effectively recognize different metal ions of biol. significance fluorimetrically and colorimetrically with a high degree of selectivity and sensitivities. While compound I is sensitive to Fe3+ ions, compound II is responsive to both Fe3+ and Al3+ ions in aqueous CH3CN (4/1, volume/volume; 10 mM tris HCl buffer, pH 6.8). The sensing mechanism involves the metal-ion chelation-induced spirolactam ring opening of the rhodamine scaffold that results in both color and fluorescence changes, while the extent of interactions with the metal ions is truly governed by the chem. structure of the compounds Both I and II are proficient in detecting Fe3+ and Al3+ ions in human lung cancer cells (A549). As new findings, unlike I, compound II formed a faint pink gel in the toluene-hexane mixture solvent (1:1, volume/volume), and the gel state of II selectively recognizes Ag+ ions by exhibiting a phase change from gel to purple soluble Exptl. findings establish the role of the formamide moiety in forming the self-assembly. In the experiment, the researchers used many compounds, for example, 2,6-Diaminopyridine(cas: 141-86-6Product Details of 141-86-6)
2,6-Diaminopyridine(cas: 141-86-6) belongs to pyridine. Pyridine and its simple derivatives are stable and relatively unreactive liquids, with strong penetrating odours that are unpleasant.Product Details of 141-86-6