A5085410272- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- Transition Metal Oxide Nanomaterials
- ZnO doping and properties
- Conducting polymers and applications
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Advanced Photocatalysis Techniques
- Synthesis and Properties of Aromatic Compounds
- Gas Sensing Nanomaterials and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Perovskite Materials and Applications
- Catalytic Processes in Materials Science
- Ga2O3 and related materials
- Crystallography and molecular interactions
- Molecular Sensors and Ion Detection
- Polydiacetylene-based materials and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Copper-based nanomaterials and applications
- Organoboron and organosilicon chemistry
- Electron and X-Ray Spectroscopy Techniques
- Thin-Film Transistor Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Photochromic and Fluorescence Chemistry
University of Jinan
2019-2025
Northwest University
2023-2025
South China University of Technology
2024
Sichuan University
2008-2021
Hunan University
2020-2021
Tianjin University of Technology and Education
2019
Beijing University of Chemical Technology
2019
Chinese University of Hong Kong
2014-2018
Shatin Hospital
2017
Government of Northwest Territories
2015-2017
It is widely accepted that photogenerated holes are the only driving force for oxidizing an electron donor to form H+ during photocatalytic H2O2 production (PHP). Here, we use nitrogen deficiency carbon nitride as a model catalyst and propose several different reaction mechanisms of PHP based on comprehensive analysis experiment simulation results. Nitrogen vacancies can serve center oxidation, reduction, charge recombination, promoting generation h+, •O2–, 1O2, respectively, thus induce...
Molecular engineering of tetraazapentacene with different numbers fluorine and chlorine substituents fine-tunes the frontier molecular orbitals, vibrations, π-π stacking for n-type organic semiconductors. Among six halogenated tetraazapentacenes studied herein, tetrachloro derivative (4Cl-TAP) in solution-processed thin-film transistors exhibits electron mobility 14.9 ± 4.9 cm2 V-1 s-1 a maximum value 27.8 , which sets new record n-channel field-effect transistors. Computational studies on...
A novel class of helical nonracemic tubular coordination polymers, which can immobilize a wide range solvents at very low concentrations, have been synthesized for the first time in absence chiral influences and appended groups.
We herein demonstrate a new gelation mechanism based on readily available coordination polymer {Zn(bibp)2(OSO2CF3)2}n, in which ultrasound changes the morphology of material from sheetlike microparticles into nanofibers, resulting immobilization organic solvents.
Colors to dye for: Palladium-catalyzed regiospecific N-heteroarylations of amidines with 2-halo-N-heteroarenes leads a structurally diverse library BF2 /amidine-based complexes. These dyes not only present full-visible-color solid-state emissions large Stokes shifts and high fluorescence quantum yields, but also exhibit full-color-tunable mechanofluorochromic nature.
Squaraines (SQs) with tunable emission in the solid state is of great importance for various demands; however a remaining challenge quenching upon aggregation. Herein, unique SQ, named as CIEE-SQ, designed to exhibit strong crystal, undergoing crystallization-induced reverse from dark 1 (n+σ,π*) bright (π,π*) excited states. Such an CIEE-SQ can be subtly tuned by molecular conformation changes during unexpected temperature-triggered single-crystal (SCSC) reversible transformation....
Mechanofluorochromic materials have great potential for a wide variety of applications such as sensors, memory devices, motion systems, security and so forth. However, only few design principles been disclosed, which greatly impedes the growth mechanofluorochromic dyes. Here, strategy molecular mechanochromic luminescence is reported, based on cation–anion interaction‐directed switching stacking. On basis this strategy, series common N‐heteroaromatic onium fluorophores imidazolium,...
Stimuli-responsive organic materials with controllable luminescence are of enormous importance because their potential applications in sensing, data security, and display devices. In this study, a multistimuli-responsive squaraine dyad (SQ-d) composed two rigid moieties flexible ethylene linker was rationally designed synthesized. SQ-d exhibits polymorphic luminescence, which can be reversibly switched by various external stimuli, including solvent vapor exposure, heat, shear force....
A small variation in a molecule structure induces drastic change from fluorescence ( F )-dominant to phosphorescence P dual emission with excitation-dependent properties.
Abstract Six monosubstituted phenazine derivatives were designed and synthesized for constructing cocrystals to investigate their structure–property relationship. It was found that 2‐substituted phenazines could form with 2,6‐dimethylphenylboronic acid (DBA). These exhibited red‐shifted enhanced luminescence relative individual components, especially 2NP‐DBA whose efficiency nearly 100 times higher than of 2NP. By analyzing the single‐crystal structures hydrogen bonds π–π interactions...
The interface between dispersed compound nanoprecipitates and metal substrates can act as effective hydrogen traps, impeding diffusion accumulation, thus mitigating the risk of embrittlement hydrogen-induced coating failure. In this study, we considered precipitation vanadium carbide (VC) nitride (VN) on a body-centered cubic Fe (α-Fe) substrate in Kurdjumov–Sachs (K–S) orientation relationship. To evaluate stability trapping ability interface, used first-principles method to calculate...
We have discovered that squaraine NCSQ easily react with ketones in the presence of ammonium acetate to form a novel type CCSQ. It is interesting find NCSQs exhibit unusual solid-state fluorescence, whereas CCSQs only fluorescence solution. The quantum yield solid NCSQ-g measured be 0.36, which highest among squaraines found so far. large spectral overlap between emission and absorption CCSQs, structural similarity these molecules make them excellent energy-transfer (ET) pairs, as...
Abstract The synthesis of novel π‐extended N‐heteroacenes, which have a large tetraazaacene subunit and quinoxaline connected through four‐membered ring, is reported. They were studied with experimental computational methods in comparison to the corresponding tetraazaacenes. As found from DFT calculation, ring better linker than five‐membered or C−C single bond extend N‐heteroacenes for new design n‐type semiconductors terms spatial delocalization energy level LUMO as well reorganization...
Silylethynylated diazatetracenes were synthesized in a more efficient way and applied as n-type semiconductors solution-processed thin film transistors with an electron mobility of 0.65 cm(2) V(-1) s(-1). Co-crystallization these silylethynylated tetracene resulted solid solutions, which exhibited interesting electrical optical properties.
This study puts forth a new π-electron molecular scaffold containing two phenazine moieties connected by four-membered ring. It exhibits interesting optical and electronic properties sheds light on the role of ring in conjugation.
A donor–acceptor cross-conjugated phenazine macrocycle exhibiting NIR luminescence and a large Stokes shift was developed for sensing transition metal ions with “turn-on” fluorescence.