Synthesis of indolo[3,2-b]carbazole-based new colorimetric receptor for anions: A unique color change for fluoride ions

Abstract

SummaryA novel indolocarbazole-based chemosensor 1 containing hydrogen bond donor moieties has been established as a selective colorimetric and fluorometric sensor for F− in CH3CN/H2O (4:1 v/v). Upon the addition of a series of tetrabutylammonium salts to receptor 1 in aqueous CH3CN, only when the counter ion was F− was a significant color change (from light violet to dark orange) observed.

Conjugated carbazole-thiophene copolymer: Synthesis, characterization and applications

“…A series of conjugated copolymer containing carbazole group was applied for organic solar cell [9], enhancement of bright pure blue-violet light with high quantum yield [10], recording media [11] and other interesting applications. And this polymer containning carbazole group is applied detecting material for chemical substance, because the nitrogen atom of the carbazole molecule has lone pair-electron [12][13][14][15][16][17][18][19][20]. In fact, carbazole and its derivatives have attracted much attention with it interesting characteristics for fabrication of fluorescent sensor [14][15][16][17]19,21].…”

“…And this polymer containning carbazole group is applied detecting material for chemical substance, because the nitrogen atom of the carbazole molecule has lone pair-electron [12][13][14][15][16][17][18][19][20]. In fact, carbazole and its derivatives have attracted much attention with it interesting characteristics for fabrication of fluorescent sensor [14][15][16][17]19,21]. Moreover, the polymers containing higher carbazole content also have high thermal stability [22][23][24][25].…”

Hg2+-selective “turn-on” fluorescent chemodosimeter derived from glycine and living cell imaging

“…The development of novel chromophores with appropriate reactive regions for selective, sensitive detection remains an important goal for ion sensors. During our ongoing research on both cation [31,32] and anion [33,34] recognition, herein, we report the synthesis and application of a probe based on benzthiazole, 2-benzthiazol-2-ylmethylisoindole-1,3-dithione (3), for the selective, sensitive detection of Hg 2+ ions in In the present case, our strategy for designing a chemical sensor for mercury was glycine amino acid to N-phthaloylglycine scaffold having an appended benzthiazole. As amino acids are water-soluble and biologically and environmentally compatible, new chemical sensors based on amino acids are a promising route of development.…”

A simple coumarin-based colorimetric and ratiometric chemosensor for acetate and a selective fluorescence turn-on probe for iodide

“…From this logic several synthetic receptors have been designed including urea [21][22][23][24][25], thiourea [26][27][28][29][30][31], amides [32], thiazole [33], imidazolium [34], phenylhydrazone [35], indole [36][37][38], pyrrole [39,40], and phenol [41], units for interaction study with negatively charge ionic species (also can be referred as guest). The phenylhydrazone type of receptors [42][43][44][45][46], is neutral and the chemistry involved to synthesize these kinds of molecules is also simpler.…”