Insight into the aggregation prospective of Schiff base AIEgens enabling an efficient hydrazine sensor in their aggregated state

Abstract

In this study, we present two small fluorogenic Schiff base molecules 1 and 2 encompassing both donor and acceptor moiety in the single-molecule to trigger the AIE activity and report...

Terminal substituent-induced differential aggregation and sensing properties: A case study of neutral benzimidazole-based urea receptors

“…Our persistent effort to explore the fascinating supramolecular self-assembly behaviour of small molecules 35–37 as well as to employ the system as an excellent sensing tool has led us to develop two benzimidazole-based urea receptors R1 and R2 , differing in the terminal substituents, to have a comparative study regarding aggregation as well as sensing potential. One of them is tailored with a naphthyl fluorophore, while the other contains a meta-cyanophenyl group, both attached to 2-(1 H -benzimidazol-2-yl)aniline through a urea linkage.…”

“…33 However, upon rational design by the introduction of adequate aromatic (phenyl) rotors on the periphery, the normal ACQ luminogens with a big and planar p structure could be converted to an AIE or AEE (aggregation enhanced emission) one as a result of the twisted conformation and suppressed p-p stacking. 34 Our persistent effort to explore the fascinating supramolecular self-assembly behaviour of small molecules [35][36][37] as well as to employ the system as an excellent sensing tool has led us to develop two benzimidazole-based urea receptors R1 and R2, differing in the terminal substituents, to have a comparative study regarding aggregation as well as sensing potential. One of them is tailored with a naphthyl fluorophore, while the other contains a meta-cyanophenyl group, both attached to 2-(1Hbenzimidazol-2-yl)aniline through a urea linkage.…”

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

“…Significant advancements in designing aggregation-induced emission (AIE) active building blocks for molecular self-assemblies to create molecular superstructures with distinctive morphologies have caught the interest of researchers all over the world. − The principles of AIE and AIEE were unusual discoveries in the domain of organic luminophores since they challenged the common perception that aggregation-caused quenching (ACQ) suppresses luminescence. Despite the importance of AIEgens, developing a new methodological approach that can build AIEgenic systems from common ACQphores is a difficult task. − …”

Insights into the self-aggregating properties of a solvatochromic probe and interaction with β-lactoglobulin

“…Supramolecular entities involving a variety of functional fluorophores are receiving special attention because they not only provide an in-depth understanding of the photophysical properties and progressive development of the assemblies, but they also lend themselves to advanced applications in specific fields. 1,2 Fluorophores, capable of forming supramolecular aggregates, have fascinated scientists for years due to their remarkable visual/optical properties. The structure and environment impact the spectral features of fluorescent compounds.…”