Cleft-type imidazoliums for sensing of sulfate and polyphosphate anions with AIE emission

π-Extended Tetraphenylethylene Containing a Dicyanovinyl Group as an Ideal Fluorescence Turn-On and Naked-Eye Color Change Probe for Hydrazine Detection

“…However, there have been still some limitations such as a high background signal, small stokes shifts, low fluorescence quantum yield, and poor aqueous solubility. , To overcome these problems, many AIEgens were recently exploited for the detection of hydrazine, which can exhibit an aggregation-induced emission (AIE) with a large stokes shift and high fluorescence intensity (FI) under aqueous conditions. − …”

Anion-templated synthesis of a switchable fluorescent [2]catenane with sulfate sensing capability

“…62 Hence, sulfate-selective sensors could be used to elucidate the diverse roles of sulfate in living organisms, allow improved diagnostics, and facilitate monitoring of environmental samples. [93][94][95][96][97][98][99][100][101][102][103][104][105][106][107][108] Despite the growing understanding of the biological, environmental, and technological importance of sulfate, examples of its uorescent sensing in aqueous media are very limited. [99][100][101][102][103][104][105][106][107] In fact, sulfate remains one of the most challenging anionic targets for molecular recognition in water, primarily due to its extremely high hydration energy (DG = −1090 kJ mol −1 ).…”

“…[93][94][95][96][97][98][99][100][101][102][103][104][105][106][107][108] Despite the growing understanding of the biological, environmental, and technological importance of sulfate, examples of its uorescent sensing in aqueous media are very limited. [99][100][101][102][103][104][105][106][107] In fact, sulfate remains one of the most challenging anionic targets for molecular recognition in water, primarily due to its extremely high hydration energy (DG = −1090 kJ mol −1 ). Therefore, inspired by the sulfate binding protein, which strongly and selectively binds sulfate in water by encapsulating the anion using a network of hydrogen bonds, [109][110][111] we envisaged that strategic incorporation of strong hydrogen bond donors inside a three-dimensional cavity of an electroneutral uorescent catenane could mimic these characteristics and allow strong binding and selective sensing of sulfate in aqueous media (Fig.…”

“…62 Hence, sulfate-selective sensors could be used to elucidate the diverse roles of sulfate in living organisms, allow improved diagnostics, and facilitate monitoring of environmental samples. 93–108…”

Anion-templated synthesis of a switchable fluorescent [2]catenane with sulfate sensing capability

“…61 Hence, sulfate-selective sensors could be used to elucidate the diverse roles of sulfate in living organisms, allow improved diagnostics, and facilitate monitoring of environmental samples. [92][93][94][95][96][97][98][99][100][101][102][103][104][105][106][107] Despite the growing understanding of the biological, environmental, and technological importance of sulfate, examples of its fluorescent sensing in aqueous media are very limited. [98][99][100][101][102][103][104][105][106] In fact, sulfate remains one of the most challenging anionic targets for molecular recognition in water, primarily due to its extremely high hydration energy (ΔG = -1090 kJ/mol).…”