Synthesis of new chiral fluorescent sensors and their applications in enantioselective discrimination

Main-Group-Based Electro- and Photoactive Chiral Materials

“…The antagonistic effect, namely the appearance or the enhancement of luminescence upon aggregation, already introduced above, is aggregation-induced emission (AIE). , Typically, non-planar molecules with a π-conjugated core would see their intramolecular motions slowed or stopped upon aggregation, thus preventing a non-radiative energy transfer from the excited state to the ground state to occur via intramolecular rotations or vibrations. For example, Dai and co-workers studied several tetraphenylene (TPE) chiral molecules displaying AIE and having thiourea moieties for chiral guest sensing and recognition. , …”

“…For example, Dai and co-workers studied several tetraphenylene (TPE) chiral molecules displaying AIE and having thiourea moieties for chiral guest sensing and recognition. 195,196 Along with TPE, fluorescent silole derivatives represent one of the most common motifs for AIE materials. It was proposed that the intramolecular rotation of the phenyl rings surrounding the silole core plays a prevalent part in the non-radiative energy transfer process, and that these rotations are prevented in the packed state.…”

Synthesis of novel fluorescence probes and their application in the enantioselective recognition of arginine

“…[24][25][26][27][28][29] Our research group has previously developed numerous uorescence analytical probes for the identication and analysis of chiral amino acids, carboxylic acids, amines, and alcohols (Table 1). [30][31][32] In recent years, there has been signicant progress in the development of chiral amino acid recognition uorescent probes utilizing BINOL structures as uorophores, as evidenced by a number of notable studies. [33][34][35][36] Conventionally, chiral amino acid probes utilizing the BINOL structure rely on the aldehyde group within the naphthalene ring to engage in a Schiff base reaction with the amino acid, leading to the formation of a complex wherein the remaining substituents of the probe intricately interact with the amino acid, consequently inducing alterations in the uorescence properties of the probe.…”

Synthesis and Complexation Studies of Optically Active Aza- and Diazacrown Ethers Containing a Pyrene Fluorophore Unit

“…The sensing based on fluorescence is attractive due to the selectivity, high sensitivity and quick response time of fluorescence spectroscopy [3]. Great efforts have been made on the design, synthesis, and use of chiral fluorescent chemosensors [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. The first use of photophysical techniques for elucidation of chiral recognition by crown ethers was reported in 1980 [20].…”