Switching the recognition preference of thiourea derivative by replacing Cu²⁺: spectroscopic characteristics of aggregation-induced emission and mechanism studies for recognition of Hg(ii) in aqueous solution

Abstract

Design, synthesis and characterization of thiourea-functionalized π-conjugated cyanostilbene derivative of CN-S.

Aggregation-Induced Emission: Together We Shine, United We Soar!

“…Whilst we have tried our best to prepare a comprehensive review article, it is technically impossible for us to cover every piece of published papers, as the “old” papers are too numerous to enumerate and the “new” ones are published in a speed too fast to catch. In an effort to compensate this loss, we herein provide a list of representative papers published recently by different research laboratories in the world in the reference section. − …”

A “Turn-On” fluorescent probe for sensitive and selective detection of fluoride ions based on aggregation-induced emission

“…[45][46][47][48][49][50][51][52] We have also constructed several uorescent probes which possess signicant AIE feature. [53][54][55] It is well known that the familiar excited state intramolecular proton transfer (ESIPT) uorophore 2-(2 0hydroxyphenyl)-benzothiazole (HBT) has been widely used to construct uorescent probes, owing to its large Stokes shi and high photostability. [56][57][58] Moreover, HBT has typical AIE properties by virtue of ESIPT and restriction of intramolecular motion (RIM) mechanisms.…”

Quantitative and highly selective sensing of sodium houttuyfonate via long-aliphatic chains hydrophobic assembly and aggregation-induced emission

“…[12][13][14][15][16] Recently, some chemosensors based on molecular aggregation induced emission enhancement (AIEE) [17][18][19] were developed and utilized as efficient fluorescent chemosensors for the detection of small organic molecules and biomolecules. [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] Among these new AIE luminogens, an a-cyanostilbene derivative, a power optical sensing platform based on p-conjugated molecules comprising a cyanostilbene backbone with terminal functional groups offers a unique combination of high sensitivity and visual detection. [36][37][38][39][40][41] We have also constructed two p-conjugated cyanostilbene derivatives which possess an unusually high emissive aggregation-induced emission (AIE) feature and could be used as detection probes for Hg 2+ or Cu 2+ .…”

“…[36][37][38][39][40][41] We have also constructed two p-conjugated cyanostilbene derivatives which possess an unusually high emissive aggregation-induced emission (AIE) feature and could be used as detection probes for Hg 2+ or Cu 2+ . 34,40 Meanwhile, several kinds of water-stable and adaptive materials mainly based on the strategy of intermolecular electrostatic and hydrophobic interactions have been developed for bioanalysis, bioimaging and fluorescent detection. [42][43][44][45][46][47][48][49][50][51] Based on the above thinking, we designed and synthesized a series of quaternary ammonium salts of cyanostilbene derivatives (as shown in S1, ESI †).…”