A5020351357- Supramolecular Self-Assembly in Materials
- Surface Chemistry and Catalysis
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Molecular Junctions and Nanostructures
- Polydiacetylene-based materials and applications
- Photochromic and Fluorescence Chemistry
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Synthesis and Properties of Aromatic Compounds
- Graphene research and applications
- Covalent Organic Framework Applications
- Medical Imaging Techniques and Applications
- Organic Electronics and Photovoltaics
- Molecular Sensors and Ion Detection
- Spectroscopy and Quantum Chemical Studies
- Magnetic properties of thin films
- Metal-Organic Frameworks: Synthesis and Applications
- DNA and Nucleic Acid Chemistry
- Advanced biosensing and bioanalysis techniques
- Lipid Membrane Structure and Behavior
- Quantum optics and atomic interactions
- Surface and Thin Film Phenomena
- Analytical Chemistry and Chromatography
- Magneto-Optical Properties and Applications
Qingdao University of Science and Technology
2015-2024
Beihang University
2023-2024
Université de Lorraine
2023-2024
Centre National de la Recherche Scientifique
2023-2024
Institut Jean Lamour
2023-2024
Qingdao Center of Resource Chemistry and New Materials
2015-2019
Chinese Academy of Sciences
2007-2015
Harbin Institute of Technology
2014-2015
Qingdao Institute of Bioenergy and Bioprocess Technology
2013-2014
KU Leuven
2011-2014
Despite recent advances in exfoliated vdW ferromagnets, the widespread application of 2D magnetism requires a Curie temperature (Tc) above room as well stable and controllable magnetic anisotropy. Here we demonstrate large-scale iron-based material Fe4GeTe2 with Tc reaching ~530 K. We confirmed high-temperature ferromagnetism by multiple characterizations. Theoretical calculations suggested that interface-induced right shift localized states for unpaired Fe d electrons is reason enhanced Tc,...
Abstract Porous organic polymers (POPs) have been considered as prominent adsorbents for volatile iodine. So far, both crystalline and amorphous POPs accomplished excellent iodine capture capability. Considering the difficulty challenges in preparing perfect POPs, more explorations into developing versatile are needed. Herein, based on Schiff‐base reaction were designed synthesized removal. Four products named NDB‐H , NDB‐S ADB‐HS ADB‐S obtained under different solvothermal conditions...
An achiral oligo(p-phenylene vinylene) derivative with a ureido-triazine hydrogen bonding unit self-assembles into rows of bonded dimers at the liquid/solid interface. Scanning tunneling microscopy reveals formation chiral domains, but overall, surface remains racemic. Addition auxiliary which is able to interact through bonding, showed that global organizational chirality could be achieved since majority domains show same handedness. After removing volatile solvent, trapped, revealing...
A series of novel cis poly(phenylacetylene)s (PPAs) substituted at the meta-position(s) by both achiral alkoxycarbonyl and chiral alkylamide groups, i.e., rP-I, sP-I to sP-V, or just a group, rP-VI, were synthesized under catalysis [Rh(nbd)Cl]2. The dependence elongation, screw sense, stimuli response helical polyene backbone on structure number substituent was systematically investigated in solution solid states. Stretched cis–transoid helices with opposite signs coexisted DMF either but...
The formation of well-defined finite-sized aggregates represents an attractive goal in supramolecular chemistry. In particular, construction discrete π-stacked dye assemblies remains a challenge. Reported here is the design and synthesis novel type aggregate from two comparable perylenediimide (PDI) dyads (PEP PBP). criss-cross PEP-PBP dimers solution (PBP-PEP)-(PEP-PBP) tetramers solid state are well elucidated using single-crystal X-ray diffraction, dynamic light scattering,...
Ultrafast manipulation of magnetic order has challenged the understanding fundamental and dynamic properties materials. So far single-shot switching been limited to ferrimagnetic alloys, multilayers, designed ferromagnetic (FM) heterostructures. In FM/antiferromagnetic (AFM) bilayers, exchange bias (H
In this work, a one‐step method synthesis of lactide was reported instead the traditional two‐step method. The selection suitable acid catalyst polyphosphoric (PPA) and optimization reaction conditions resulted in yield 97%. Moreover, new strategy eliminates need for metal catalysts does not require high‐temperature conditions, thereby avoiding issue racemization. simple offers combination efficiency, sustainability, product quality improvements, making it modern, practical approach to synthesis.
The formation of DNA nucleoside-assisted π-conjugated nanostructures was studied by means scanning tunneling microscopy (STM) and force field simulations. Upon adsorption the achiral oligo(p-phenylenevinylene) (OPV) derivative at liquid/solid interface, racemic conglomerates with mirror related rosettes are formed. Addition nucleosides D- L-thymidine, which act as "chiral handles", has a major effect on supramolecular structure expression chirality OPV molecules. influence these handles" is...
Anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetraone, namely, perylene bisimides (PBIs), belong to n-type organic semiconductors and possess potential applications in optoelectronic devices. The properties/performance of fabricated nanostructures/devices could be greatly influenced by both molecular structures PBI building blocks corresponding arrangement assembled nanostructures. Many efforts have been made modify the core then investigate nanostructures properties....
A range of ortho-π-extended PDI derivatives are straightforwardly synthesized in good yields through highly regioselective heteroannulations ortho-alkynyl-substituted with sulfur, selenium, or nitrogen nucleophiles. Successful synthesis pyrrole-fused rylene dyes by using primary amines as nucleophiles indicates the great synthetic potential this facile annulation route. Further opto-electrochemical study these novel thiophene-, selenophene-, and PDIs suggests that effective π-conjugation...
Multi-stimuli responsive organogels based on low-molecular-weight gelators (LMWGs) have attracted much attention due to their potential applications. Herein, the synthesis and self-assembly behavior of a novel molecular gelator tetrapeptide–dithienylcyclopentene conjugate is described. This forms stable gels in THF, acetone acetonitrile, which formation anti-parallel β-sheets biomimetic tetrapeptides key driving force. Further studies suggest that organogel multi-responsive various external...
One of the challenging issues that hinders application single-walled carbon nanotubes (SWCNTs) is poor solubility and inevitable formation bundles. Efforts still need to be made towards solving problem. Herein, we report a non-covalent strategy disperse aggregated SWCNTs by aromatic cyclic Schiff bases assisted ultrasonic techniques. The base (OMM) was synthesized via reactions, molecular structure determined ATR-FT-IR, solid-state 13C-NMR, HRMS. Although yielded product showed in aqueous...
The Langmuir and Langmuir-Schaefer (LS) films of two coumarin derivatives, 4-octadecyloxylcoumarin (4-CUMC18) 7-octadecyloxylcoumarin (7-CUMC18), were newly synthesized, their interfacial assemblies investigated. Owing to the different substituent position long octadecyloxy chain in parent, compounds showed completely behaviors assemblies. When they spread at air/water interface, 7-CUMC18 formed a monolayer while 4-CUMC18 multilayer film on water surface. spreading surface transferred onto...
Length scale dependent formation of conglomerates and racemic compounds has been observed in self-assembled hierarchical supramolecular architectures based on oligo(p-phenylenevinylene)-phenylglycinamide at the liquid-solid interface solution.
An imine-based 2D polymer side-functionalized with o-hydroxyl group was designed in regard to its potential ability serve as a chelating agent and synthesized on highly oriented pyrolytic graphite surface relatively low annealing temperature. When annealed higher temperature the reacts further imine group, leading formation of oxazoline, which causes significant distortion network. The oxazoline confirmed by ATR-FTIR.
Co-assembly of n-type semiconductors NDI and PDI with p-type pyrene derivatives resulted in the formation stable organogels, which was induced by strong charge transfer (CT) interactions between acceptors donors chloroform. The dimension size aromatic core from found to have a significant impact on organogels. width fibers CT gels is about twice that PDI. It acceptor preferred an alternate stacking donors, intercalated each other via interactions. In contrast, stack among themselves within...
Controlled synthesis of a single-handed helical polymer from an achiral monomer is still great challenge. In this work, we report two chiral Pd(II) catalysts bearing commercially available R- or S-2,2′-bis(diphenylphosphino)-1,1′-binaphthalene (R- S-BINAP) ligands. Polymerization phenyl isocyanide (A-1) by S-BINAP/Pd(II) afforded single right-handed poly(phenyl isocyanide)s in high yields with controlled molar mass (Mns) and narrow distributions (Mw/Mns). While the R-BINAP/Pd(II) catalyst...
The rigidity and affinity of building blocks to the surface show essential effects on topology 2D polymers.
With the aim of achieving surface-mediated enantioselective adsorption, self-assembly chiral oligo(p-phenylenevinylene) (OPV3T) with nucleosides is investigated at liquid/solid interface by means scanning tunneling microscopy and molecular modeling. OPV3T enantiomers form mirror related hexameric rosette patterns. The DNA nucleoside, thymidine, does not self-assemble into stable adlayers but coadsorbs on surface, leading to a pattern transformation from rosettes dimers, change in expression...
Self-assembled organic nanotubes exhibit a circularly polarized luminescence (CPL) response to solvent polarity.
A series of 2,5,8,11-tetraalkenyl perylene bisimide (PBI) derivatives were synthesized through Ru(II)- or Rh(III)-catalyzed regio- and steroselective oxidative C-H olefination in one step. The optical electronic self-assembly the 2,5,8,11-substituted PBIs investigated, which showed great potential optoelectronic applications.
An artificial peptide, N3-GVGV-OMe (G, glycine; V, valine), which mimics the repeating GAGA (A, alanine) sequence in Bombix Mori silk, was synthesised via solution-phase synthesis. Compared with N3-GAGA-OMe sequence, showed high solubility common organic solvents (such as CHCl3, THF and CH2Cl2), easily formed organogels simply by adding poor toluene or ether) to peptide solution at room temperature. The hierarchical nanostructure of organogel dependent on nature solvents, although all cases,...
Molecular modeling simulations reveal the role of stereogenic centers in formation enantiomorphous surface-confined supramolecular rosette-like assemblies monolayers oligophenylene vinylene oligomers adsorbed at graphite/solvent interface.