“…Selective detection of anions using calixpyrrole, dipyrrolequinoxaline, dipyrromethane, and pyrrolic amide were reported [8][9][10][11][12][13][14][15][16]. Azo N = N group, as a famous signal unit, has been widely used in the design of colorimetric anion sensors [17][18][19][20][21]. The 2azopyrrole, which combines pyrrole with N = N group, could be a good anion sensor.…”
A bisazo-dipyrrolmethane based macrocycle with crown ether part, compound 2, was synthesized and its structure was characterized by X-ray crystallography. In the crystal, the molecules of compound 2 self-assembled into tubular structures through included solvents and C-H…N hydrogen bonds. The Powder X-ray diffraction studies revealed that the crystal continue to has the tubular structure after remove the solvents. The selective fluoride ion detection of 2 in DMSO solution was also studied by UV-Vis and 1H NMR titration experimental.
“…Selective detection of anions using calixpyrrole, dipyrrolequinoxaline, dipyrromethane, and pyrrolic amide were reported [8][9][10][11][12][13][14][15][16]. Azo N = N group, as a famous signal unit, has been widely used in the design of colorimetric anion sensors [17][18][19][20][21]. The 2azopyrrole, which combines pyrrole with N = N group, could be a good anion sensor.…”
A bisazo-dipyrrolmethane based macrocycle with crown ether part, compound 2, was synthesized and its structure was characterized by X-ray crystallography. In the crystal, the molecules of compound 2 self-assembled into tubular structures through included solvents and C-H…N hydrogen bonds. The Powder X-ray diffraction studies revealed that the crystal continue to has the tubular structure after remove the solvents. The selective fluoride ion detection of 2 in DMSO solution was also studied by UV-Vis and 1H NMR titration experimental.
“…Owing the advantages of being simple, rapid, and inexpensive, the chemical probe-based colorimetric or fluorometric methods 10,11 were preferred in CN − detection, particularly in on-site tests. Among these chemical probes, small molecule fluorescent probes were frequently developed and employed in CN − detection 12 based on the strong binding affinity between CN − and H + , 13 metal ions 14 or carbonyl compounds. 15 Alternatively, nucleophilic reaction-based CN − probes exhibit better specific selectivity and higher sensitivity.…”
Cyanide anion (CN-) in diet may cause serious health risk, asking for sensitivity, selective, and rapid detection method, especially in on-site test. In this work, a novel bisspiropyran (SP1) fluorescent...
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