Multi-stimuli distinct responsive D–A based fluorogen oligomeric tool and efficient detection of TNT vapor

Abstract

It is highly demanding to develop fluorescent-based multi-stimuli responsive material. Herein, we reported an oligomeric network labeled P1, composed of heterocyclic triazine as π-electron acceptor (A) connected directly with π-electron...

A multi-chromic boron trifluoride–pyridyl Lewis adduct

“…Although many chromic boron-containing compounds have been reported, these generally result in chelated BF 2 derivatives and require multi-step syntheses. [9][10][11][12][13][14] Additionally, solid-state emissive and chromic non-chelated boranes using Lewis acids such as B(C 6 F 5 ) 3 have been reported, as well as organoboron trifluorides. 15 However, the formation of F 3 B-N adducts is a synthetically simple and versatile alternative, as readily available pyridyl precursors may be chosen and the adduct formed in one step.…”

Enhanced TNT vapor sensing through a PMMA-mediated AIPE-active monocyclometalated iridium(iii) complex: a leap towards real-time monitoring

“…24 In the quest to detect nitro-based explosive compounds, various luminescent explosive sensors have been developed, leveraging small molecules, conjugated polymers, self-assembled organic nanomaterials, and metal-organic frameworks. 13,14,[25][26][27][28][29][30][31][32][33][34] These have been evaluated for their utility in both solution and vaporphase sensing, but very few reports for fluorescence-based molecules have been employed to detect TNT vapor. 14,19,25,[34][35][36] Mothika and co-workers reported films of tetraphenylene ethylene-based conjugated microporous polymers (PTPETCz) through an electro-polymerization method using tetra(carbazolylphenyl)ethylene monomer, which can detect TNT vapor even at a very low concentration of 33 ppb.…”

Multi Stimuli Responsive Non‐Doped Red Emitting AIEE Active Phenothiazine‐Based Chalcones: Crystal Structure, Solvatochromism, Turn‐on Mechanofluorochromism and Acidochromism

“…Therefore, we envisaged that the compounds containing carbonyl oxygen might also be utilized as probes for acidochromism. [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73] In this work, we have designed and synthesized a series of three symmetrical red-colored chalcone derivatives containing two non-planar electron-rich phenothiazine units linked together through a cross-conjugated system, giving a D-π-A-π-D type push-pull molecular arrangement (Figure 1). To fine tune the photophysical properties, different alkyl chains (n = 2À 4) were substituted at position 10 of the phenothiazine units.…”

“…are assisted by intermolecular H‐bonding. Therefore, we envisaged that the compounds containing carbonyl oxygen might also be utilized as probes for acidochromism [58–73] …”