A5101863073- Supramolecular Chemistry and Complexes
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Supramolecular Self-Assembly in Materials
- Molecular Sensors and Ion Detection
- Crystallography and molecular interactions
- Luminescence and Fluorescent Materials
- Porphyrin and Phthalocyanine Chemistry
- Chemical Synthesis and Analysis
- Synthesis and Properties of Aromatic Compounds
- Synthesis and characterization of novel inorganic/organometallic compounds
- Advanced NMR Techniques and Applications
- Molecular spectroscopy and chirality
- Liquid Crystal Research Advancements
- Photochromic and Fluorescence Chemistry
- RNA and protein synthesis mechanisms
- DNA and Nucleic Acid Chemistry
- Antimicrobial Peptides and Activities
- Surfactants and Colloidal Systems
- Analytical Chemistry and Chromatography
- Nanocluster Synthesis and Applications
- Advanced Polymer Synthesis and Characterization
- Advanced Chemical Physics Studies
- Nanomaterials for catalytic reactions
- Magnetism in coordination complexes
Zhejiang Sci-Tech University
2015-2024
University of Science and Technology of China
2019-2020
Hangzhou Xixi hospital
2014-2020
Hangzhou Academy of Agricultural Sciences
2020
Hefei National Center for Physical Sciences at Nanoscale
2019-2020
Changchun Institute of Applied Chemistry
2016-2019
Chinese Academy of Sciences
2008-2019
High Magnetic Field Laboratory
2019
Beijing Institute of Technology
2019
University of Chinese Academy of Sciences
2016
Because of the importance novel macrocycles in supramolecular science, interest preparation these substances has grown considerably. However, discovery a new class presents challenges because need for routes to further functionalization molecules and good host–guest complexation. Furthermore, useful macrocylic hosts must be easily synthesized large quantities. With issues mind, recently discovered pillararenes attracted our attention. These contain hydroquinone units linked by methylene...
The first water-soluble pillar[6]arene was synthesized. Its water solubility can be reversibly controlled by changing the pH. This control used in reversible transformations between nanotubes and vesicles dispersion of multiwalled carbon water.
An amphiphilic pillar[5]arene was made. It could self-assemble to form vesicles and multiwalled microtubes in water. Dynamic light scattering, transmission electron microscopy, scanning atomic force UV-vis FTIR spectroscopy were employed characterize its self-assembly process the resultant assemblies. The encapsulate calcein within their interiors under neutral conditions release it response a decrease pH. microtubes, which have primary amine groups on surfaces, adsorb TNT through...
A new water-soluble pillar[5]arene containing ten imidazolium groups was prepared. It can be used as a stabilizer to fabricate gold nanoparticles smaller than 6 nm in water.
A novel non-symmetric pillar[5]arene-based anion receptor containing multiple triazole anion-binding sites was designed and synthesized. It has high affinity selectivity for the fluoride anion.
A novel fluorescent probe for detecting paraquat and cyanide in water based on pillar[5]arene/10-methylacridinium iodide molecular recognition is reported.
Abstract Antiaromaticity, as introduced in 1965, usually refers to monocyclic systems with 4 n π electrons. This concept was extended all‐metal molecules after the observation of Li 3 Al − gas phase. However, solid‐phase counterparts have not been documented date. Herein, we describe a series antiaromatic anions, [Ln( η ‐Sb ) ] 3− (Ln=La, Y, Ho, Er, Lu), which were isolated K([2.2.2]crypt) salts and identified by single‐crystal X‐ray diffraction. Based on results obtained from chemical...
Host–guest complexation between a pillar[5]arene with mono(ethylene oxide) substituents and paraquat was studied. We demonstrated that this can form 1:1 complex in solution the solid state. The formation of confirmed by proton NMR spectroscopy, electrospray ionization mass spectrometry, single crystal X-ray analysis. Furthermore, be reversibly controlled through sequential addition removal Zn powder. host substituent effect on ability also addressed.
Silver nanoparticles with narrow size distribution were prepared in the presence of a water-soluble pillar[5]arene. They could be used for visual detection spermine analogues water through host–guest interactions.
ABSTRACT One new cytochalasan alkaloid, chaetoglobosin V b ( 1 ), together with two structurally related known compounds, 2 ) and G 3 was isolated from the ethyl acetate extract of a culture endophytic fungus Chaetomium globosum , associated leaves Ginkgo biloba tree. The structures compounds were elucidated by spectroscopic methods including 1D 2D NMR mass spectrometry. absolute configuration established means electronic circular dichroism (CD) spectroscopy, on basis comparison between CD...
The combination of distinct peptide ligation techniques to facilitate chemical protein synthesis represents one the long-standing goals in field. A new method N-to-C sequential native and Ser/Thr (NCL-STL) is described for first time. This relies on salicylaldehyde S,S-propanedithioacetal (SALPDT)-ester prepared by a 1,3-propanedithiol-mediated reaction. SALPDT-ester, which compatible with NCL, can be fully activated N-chlorosuccinimide (NCS)/AgNO3 aqueous solution afford SAL-ester use...
A novel triptycene-derived NH-bridged azacalixarene can self-assemble into an aromatic single-walled organic nanotube with large dimensions by four one-dimensional hydrogen bond chains.
Four pairs of novel N(H)-bridged azacalixarenes derived from triptycene were synthesized by both one-pot and two-step fragment-coupling approaches. Due to the unique 3D rigid structure triptycene, macrocycles all adopted fixed conformations in solution solid state. X-ray crystallographic analyses also revealed that cis isomers with boat showed capability encapsulating methanol acetone molecules inside.
On the basis of formation [2]pseudorotaxane complexes between triptycene-derived tetralactam macrocycles 1a and 1b squaraine dyes, construction squaraine-based [2]rotaxanes through clipping reactions were studied in detail. As a result, when two symmetrical squaraines 2d 2e utilized as templates, pairs isomeric 3a-b 4a-b diastereomers obtained, owing to possible linking modes triptycene derivatives. It was also found, interestingly, that nonsymmetrical dye 2g involved, there existed...
A pillar[5]arene-based [1]rotaxane was simply prepared in a high yield of 73%. Its stucture confirmed by (1)H NMR, 2D NMR spectra, mass spectra and theoretical calculation.
The main-chain liquid crystal (LC) copolyethers in which the nematic-nematic phase transition was first experimentally observed were revisited and re-characterised. Grazing incidence X-ray scattering revealed that low-T nematic (Ntb) could be highly aligned by shearing, more so than previously studied bent LC dimers. This evidenced a four-point wide-angle pattern, originates from convolution of two tilt distributions. Through intensity simulation orientational order parameter associated with...
Abstract The preparation of native S‐palmitoylated (S‐palm) membrane proteins is one the unsolved challenges in chemical protein synthesis. Herein, we report first synthesis S‐palm by removable‐backbone‐modification‐assisted Ser/Thr ligation (RBM GABA ‐assisted STL). This method involves two critical steps: 1) peptides a new γ‐aminobutyric acid based RBM ) strategy, and 2) RBM‐modified to give desired product STL method. utility was demonstrated rabbit sarcolipin (SLN) matrix‐2 (M2) ion...
A pillar[6]arene with mono(ethylene oxide) groups was synthesized and it formed a highly stable inclusion complex diquat, while the pillar[5]arene analogue did not.
A new water-soluble pillar[6]arene was successfully prepared. It complexed with a sodium p-hydroxybenzoate derivative to form supra-amphiphile. The controllable self-assembly and application in controlled release of this supra-amphiphile water were investigated.
Glucose-responsive nanogels based on dextran and poly(3-acrylamidophenylboronic acid) (PAAPBA) were fabricated by a facile self-assembly assisted (SAA) strategy. Further introduction of the fluorescent agent 2-[4-(3-hydroxy-4-oxo-4H-chromen-2-yl)phenoxy]ethylacrylamide (3HF-AM) allowed visualization this glucose sensitivity, thus ensuring their potential use as sensors.
Two novel triptycene-based tetralactam macrocycles as a pair of diastereomers were synthesized, and showed highly efficient complexation with squaraine, which could subsequently protect the squaraine dye from polar solvents.
With properly encoded recognition sites and a well-defined algorithm for intermolecular intramolecular interactions, the 120° spacer linked ditopic hydrazide-based supramolecular synthons were found to self-assemble into shape-persistent cyclic hexamers in apolar solvents. The two hydrazide motifs displayed separate sets of signals NMR spectra because interlocked conformation. While hydrogen bonding competitive solvent such as DMSO-d6 agreement with structures C2 axes. Moreover, terminative...
Water-soluble pillar[5]arene stabilized silver nanoparticles tend to assemble together upon addition of guest molecules due the host–guest interactions. Further disassembly AgNPs is realized by a competitive host water-soluble pillar[6]arene which can form stronger complex with <bold>G</bold>.