A naphthalimide-derived hypochlorite fluorescent probe from ACQ to AIE effect transformation

Abstract

In this work, by installing a free-rotating benzene ring to suppress the intermolecular π-π stacking effect in the aggregated state, the naphthalimide-derived hypochlorite (ClO-) fluorescent Probe A with aggregation-caused quenching...

Preparation of Chromeno[b]quinoline Derivatives and Their Application for Lipid Droplets Markers

“…When completely dissolved in different solvents (Figure 1c), it has the properties of traditional dyes, that is, exhibiting strong fluorescence in organic solvents and being quenched in water (Figure 1d). 19 Dyes 3c and 3d have similar optical properties to 3a (Figures S2 and S3). Interestingly, the fluorescence intensity of dye 3b in water was the same as that in DCM but was relatively weak in the other four solvents (Figure 1f).…”

“…The maximum absorption and emission wavelengths of dye 3a were located at 379 and 572 nm (Figure a and b) accompanied by a large Stokes shift (193 nm) in dichloromethane (DCM). When completely dissolved in different solvents (Figure c), it has the properties of traditional dyes, that is, exhibiting strong fluorescence in organic solvents and being quenched in water (Figure d) . Dyes 3c and 3d have similar optical properties to 3a (Figures S2 and S3).…”

Exploring the Aggregation and Light-Harvesting Aptitude of Naphthalimide-Based Amphiphile and Non-amphiphile AIEgen

“…Constant endeavor for creating new self-assembled structures by small molecules and systematized organic synthesis is our aim. − In this present work, we have synthesized two amphiphilic and non-amphiphilic compounds based on ACQ-prone, naphthalimide fluorophore. − A small manipulation of the fluorophore caused changes in the aggregation potential. The amphiphilic one bears a 12-carbon long hydrophobic tail, and the other one is devoid of it.…”

Supramolecular Polymeric Material Based on Twisted Cucurbit[14]uril: Sensitive Detection and Removal of Potential Cyanide from Water

“…In particular, it is recognized that the effective removal of cyanide in contaminated wastewater has not received sufficient attention so far, and the development of sensors capable of high selectivity and removal in aqueous solutions remains a challenge. − Conventional fluorescent sensors with bulky π-conjugated aromatic systems of emission groups often exhibit insolubility in water and produce ACQ phenomena in the aggregated state of aqueous solutions, making the optical properties poor and greatly limiting applications in aqueous solutions. − Aggregation-induced emission (AIE) is an interesting optophysical phenomenon in which fluorophores exhibit enhanced fluorescence emission in the aggregated state . In recent years, various AIE luminophores have been reported (neutral AIE luminophores, ionic AIE species, etc.…”