Development of a New Multiple Stimuli-Responsive Fluorescent Material Using the Minus Strategy Based on the Structure of Tetraphenyl-1,3-butadiene

Abstract

In this study, we designed and synthesized a new class of aggregation-induced emission luminogens, which was inspired and developed from the structure of tetraphenyl-1,3-butadienes derivative (TPB-1) through the minus strategy by removing one of the phenyl groups. Among them, L1 and L4 exhibited an aggregation-induced emission effect and multistimuli-responsive chromic behavior. Moreover, two types of single crystals of L1 were obtained, and their different emission behaviors were elucidated clearly by analyzing the single-crystal data.

Multiresponsive tetrarylethylene-based fluorescent dye with multicoloreded changes: AIEE properties, acidichromism, Al3+ recognition, and applications

“…The nonplanar structure that constitutes the propeller type ensured its strong fluorescence emission in the aggregation and solid state due to the restriction of intramolecular motions (RIMs). [14][15][16][17][18][19][20] For example, Wang et al explored a tetraphenylethene AIE fluorescent sensor, which is capable of visually distinguishing Th 4+ between lanthanide, transition metal, and alkali metal under UV light. 21 Lin et al developed a TPE-BSA sensor with good AIE features for uranyl ion detection by incorporating the salt benzene moiety into the active tetraphenylethene part of AIE.…”

Copper-catalyzed dehydrogenative cyclization/alkenylation towards dihydroquinolinones

“…We further studied the synthetic utility of C(sp 3 )-H functionalized quinolinyl dihydroquinolinones: (1) The synthesis of quinolinyl dihydroquinolinone 4Q containing a heterocyclic compound 44,45 has been demonstrated (Scheme 3B, 1). ( 2) The Selective reduction 46 of the ketone in 4D was examined (Scheme 3B, 2) (for a detailed explanation, see the ESI †).…”

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

“…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] …”

“…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.…”