A5000679682- Luminescence and Fluorescent Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Organoboron and organosilicon chemistry
- Molecular Sensors and Ion Detection
- Porphyrin and Phthalocyanine Chemistry
- Photochemistry and Electron Transfer Studies
- Catalytic C–H Functionalization Methods
- Catalytic Cross-Coupling Reactions
- Crystallography and molecular interactions
- Synthesis and Properties of Aromatic Compounds
- Periodontal Regeneration and Treatments
- Radical Photochemical Reactions
- Polydiacetylene-based materials and applications
- Enzyme Catalysis and Immobilization
- Chemotherapy-induced organ toxicity mitigation
- Covalent Organic Framework Applications
- Cancer, Lipids, and Metabolism
- Silk-based biomaterials and applications
- Reproductive biology and impacts on aquatic species
- Bioactive natural compounds
- Seaweed-derived Bioactive Compounds
- Chemical Synthesis and Analysis
Guangdong Ocean University
2004-2025
China Pharmaceutical University
2024
Xinjiang University
2024
Sichuan University of Science and Engineering
2024
Guangdong Medical College
2015-2022
Guangdong Institute of New Materials
2017
Hong Kong University of Science and Technology
2010-2015
Institute of Molecular Functional Materials
2010-2015
University of Hong Kong
2010-2015
Chinese Academy of Sciences
2010-2013
A conceptually new "light-up" biosensor with a high specificity for d-glucose (Glu) in aqueous media has been developed. The emission from tetraphenylethene (TPE)-cored diboronic acid (1) was greatly boosted when the fluorogen oligomerized Glu because of restriction intramolecular rotations aryl rotors TPE by formation oligomer. Little change light observed 1 mixed d-fructose, d-galactose, or d-mannose, as these saccharides are unable to oligomerize fluorogen.
General formalism of absorption and emission spectra, radiative nonradiative decay rates are derived using a thermal vibration correlation function for the transition between two adiabatic electronic states in polyatomic molecules. Displacements, distortions, Duschinsky rotation potential energy surfaces included within framework multidimensional harmonic oscillator model. The Herzberg−Teller (HT) effect is also taken into account. This gives reliable description Qx spectral band free-base...
In this contribution, we conceptually present a new avenue to construction of molecular functional materials with high performance circularly polarised luminescence (CPL) in the condensed phase. A molecule (1) containing luminogenic silole and chiral sugar moieties was synthesized thoroughly characterized. solution 1, no circular dichroism (CD) fluorescence emission are observed, but upon aggregation, both CD simultaneously turned on, showing aggregation-induced (AICD) (AIE) effects. The...
Stepwise locking of phenyl rings tetraphenylethene increases the emission efficiency luminogen solutions gradually, thus verifying restriction intramolecular rotation (RIR) mechanism aggregation induced phenomenon. The with one “O” bridge could be tuned reversibly in solid state through repeated heating and grinding.
Luminogenic molecules [(TPE)3 (1), TPE-C = C-TPE-C C-TPE (2), and TPE-C≡C-TPE-C≡C-TPE (3)] their polymers P1–P3 are constructed from tetraphenylethene (TPE) building blocks in high yields by Suzuki, Witting, Sonogashira coupling reactions. All the compounds soluble enjoy thermal stability, losing little of weights when they heated to 290–528 °C under nitrogen or 288–436 air. Analyses UV spectroscopy cyclic voltammetry as well theoretical calculations show that conjugation luminophores is...
A series of tetraphenylethene-containing BODIPYs with emissions from visible to near-IR and large Stokes shifts up 142 nm have been designed synthesized. They show solvatochromic fluorescence can be utilized as fluorescent visualizers for intracellular imaging.
Full color luminogens are constructed from tetraphenylethene, benzo-2,1,3-thiadiazole and thiophene building blocks. OLED fabricated using one of the exhibits orange-red electroluminescence with high luminance efficiencies 8330 cd m−2, 6.1 A−1 3.1%, respectively.
Combination of an aggregation-induced emission (AIE) moiety and a dimesitylboron group yields new three-coordinate boron compound exhibiting synergistic effect: the resultant TPEDMesB shows AIE feature with solid-state efficiency up to unity good electron-transport property, thus remarkable electroluminescence (EL) performances.
Three dimethyltetraphenylsiloles (DMTPSs) symmetrically substituted on their 2,5-positions with electron-accepting (A), i.e.aldehyde (ALD) and dicyanovinyl (DCV) or donating (D), i.e.diphenylamine (DPA) moieties were designed synthesized via facile reaction procedures. The propeller-shaped luminogens exhibit aggregation-induced/enhanced emission characteristics high quantum yields up to 74.0% in the solid state, are thermally stable, showing degradation temperatures melting points 388 246...
Rational combination of aggregation-induced emission active luminogens and mesogens generates high solid-state efficiency luminescent liquid crystals, thus resolving the problem aggregation-caused quenching normally occurs in fabrication mesomorphic films.
Methylpentaphenylsilole (MPPS) and tetraphenylethene (TPE) are two archetypal luminogens that show the novel effect of aggregation-induced emission (AIE). In this work, TPE moieties attached to MPPS core as peripheral groups at 2,5- 3,4-positions generate new AIE luminogens. The resulting 3,4-BTPEMTPS adducts weakly fluorescent in dilute solutions but become highly emissive solid aggregates, verifying their activities. Although weak absolute term, emissions stronger than those parent forms...
Tetraphenylethene (TPE) is an archetypal luminogen that exhibits a phenomenon of aggregation-induced emission (AIE), while carbazole conventional chromophore which shows the opposite effect aggregation-caused quenching (ACQ) light in condensed phase. Melding two units at molecular level generates group new luminescent materials suffer no ACQ but depict high solid-state fluorescence quantum yields up to unity, demonstrative uniqueness approach solve problem traditional luminophores. All...
In it together: Thermally stable N,C-chelate four-coordinate organoborons were attained by grafting intramolecular B⋅ ⋅ ⋅N coordination into tetraphenylethene-pyridine and -quinoline adducts. They exhibit aggregation-induced emission characteristics (see figure), high fluorescence quantum yields approaching unity in solid films. As a service to our authors readers, this journal provides supporting information supplied the authors. Such materials are peer reviewed may be re-organized for...
An efficient red luminophor (TTPEBTTD) consisting of a 4,7-di(thiophen-2-yl)benzo-2,1,3-thiadiazole core and tetraphenylethene peripheries is developed. The non-doped electroluminescence device based on TTPEBTTD radiates light with high efficiency up to 3.7%. nanoparticles are promising fluorescent visualizers for cellular imaging low cytotoxicity.
Abstract There have been intensive studies on the newly discovered phenomena called aggregation induced emission (AIE), in contrast to conventional quenching. Through combined quantum mechanics and molecular computations, we investigated effects excited state decays, both via radiative nonradiative routes, for pyrazine derivatives 2,3‐dicyano‐5,6‐diphenylpyrazine ( DCDPP ) 2,3‐dicyanopyrazino phenanthrene DCPP condensed phase. We show that there appear AIE all temperature, because phenyl...
Aggregation-induced emission (AIE) phenomenon has attracted much attention in recent years due to its potential applications optoelectronic devices, fluorescence sensors, and biological probes. Restriction of intramolecular rotation been proposed as the cause this unusual phenomenon. Rational design AIE luminogens requires quantitative descriptions mechanism. 2,3-dicyano-5,6-diphenylpyrazine (DCDPP) with "free" phenyl rings is an active compound, whereas 2,3-dicyanopyrazino [5,6-9,10]...
9,9-Bis(9-heptyl-3-carbazolyl)fluorenes (BPyBCF, BAnBCF, BTPABCF, and BTPEBCF, where B = Bis, Py pyrene, C carbazole, F fluorene, An anthracene, TPA triphenylamine, TPE tetraphenylethene) with different chromophoric units at the 2,7-positions are synthesized in moderate to high yields (52–89%) by Suzuki coupling reactions of 9,9-bis(9-heptyl-3-carbazolyl)-2,7-dibromofluorene corresponding arylboronic acid utilized as active layers for construction blue organic light-emitting diodes (OLEDs)....
Novel fluorescent organic soft porous crystals have been designed and prepared based on a multi-substituted silole bearing 1-phenyl-2,2-dicyanoethene moieties (molecule 8). 8 exhibited series of emission colors, ranging from yellow to dark red with an over 70 nm shift maximum. Molecule also showed the ability reversibly switch between different solid states, typical mechanofluorochromism was observed by cyclic operation grinding–heating–cooling processes. In addition, two single (O R) were...
Tetraphenylethene-functionalized acetylenes [(C6H5)2C═C(C6H5)(C6H4C≡CR), R = C8H17 and C6H5] were synthesized, their polymerizations effected by WCl6–Ph4Sn at elevated temperatures in toluene under nitrogen, furnishing polymers P1 P2. The possessed good solubility degraded high of up to ∼400 °C nitrogen. Both emitted weakly the solution state. Whereas emission was enhanced when aggregated, that P2 quenched, demonstrating light polyacetylenes could be varied readily changing molecular...
An efficient copper-catalyzed borylation reaction of allyl or vinyl arenes with bis(pinacolato)diboron has been developed, without using ligands. Markovnikov-selectivity is observed in the bis(pinacolato)diboron, while regioselectivity completely opposite when styrene derivatives are used as substrates. A mechanism involving Cu–B species regioselectively adding olefin double bonds to form alkylcopper η3-benzyl copper intermediate, which followed by protonation obtain products, proposed.