Wusong Jin

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Name: 金武松; Jin, WuSong

Organization: Donghua University , China

Department: College of Chemistry

Title: Professor(PhD)

TOPICS

Material Chemistry

Analytical Chemistry

Chemicals
References

Prepolymerization-assisted fabrication of an ultrathin immobilized layer to realize a semi-embedded wrinkled AgNW network for a smart electrothermal chromatic display and actuator

Co-reporter:Hongwei Fan;Kerui Li;Qiang Li;Chengyi Hou;Qinghong Zhang;Yaogang Li;Hongzhi Wang

Journal of Materials Chemistry C 2017 vol. 5(Issue 37) pp:9778-9785

Publication Date(Web):2017/09/28

DOI:10.1039/C7TC03358C

Silver nanowire/poly(dimethylsiloxane) (AgNW/PDMS)-based stretchable conductive films are widely studied due to their excellent comprehensive performances mainly derived from the great electrical conductivity of AgNWs together with the excellent mechanical and optical properties of PDMS. However, their further applications have been limited by two fatal shortcomings: the low surface energy of PDMS and poor elongation at break of AgNWs. Herein, an ultrathin PDMS-immobilized layer was prepared to construct a semi-embedded wrinkled AgNW network and overcome the limitations through spin-coating the pre-polymerized PDMS solution. As a result, the as-prepared transparent stretchable AgNW/PDMS composite films with different AgNW loadings demonstrate great transmittance, conductivity, tensile stability under 40% and 60% strains, and adhesion of AgNWs on the PDMS substrate. With a further increase of AgNW loadings, reflective stretchable conductive films were obtained and they showed a much lower sheet resistance (∼0.2 Ω sq−1) and good tensile stability under 70% strain. Based on these stretchable conductive films, stretchable electrothermal chromatic films and electrothermal actuators were fabricated to demonstrate their multifunctional applications.

Synthesis and characterization of symmetrical sulfur-fused polycyclic aromatic hydrocarbons with controlled shapes

Co-reporter:Jianghui Yin, Yumiao Hu, Dengqing Zhang, Xianying Li, Wusong Jin

Tetrahedron 2017 Volume 73, Issue 39(Issue 39) pp:

Publication Date(Web):28 September 2017

DOI:10.1016/j.tet.2017.08.020

Here we report and establish a facile synthetic method for these unprecedented sulfur-fused polycyclic aromatic hydrocarbons (S-PAHs) with symmetrical structures (C2-rectangle and D6h-hexagonal shape). Characterization by laser desorption/ionization time-of-flight mass spectrometry unambiguously validate the successful formation of these novel S-PAHs. The C2-rectangle and D6h-hexagonal-shaped S-PAHs (1 and 2) are obtained by Scholl-type cyclodehydrogenation of the corresponding precursor using FeCl3 as an oxidant, and their spectral characteristics, thermal and electrical properties are investigated.Download high-res image (160KB)Download full-size image

Reversible transformation of self-assemblies and fluorescence by protonation–deprotonation in pyrimidinylene–phenylene macrocycles

Co-reporter:Duoduo Xiao, Siqi Zhang, Dengqing Zhang, Dahai Xie, Qingdao Zeng, Yunjie Xiang, Ruguang Ning, Xianying Li and Wusong Jin

Chemical Communications 2016 vol. 52(Issue 23) pp:4357-4360

Publication Date(Web):19 Feb 2016

DOI:10.1039/C6CC00943C

We describe herein that the self-assembled nanoobjects based on pyrimidinylene–phenylene macrocycles, 1 and 2, which possess the capability to respond to acid-stimuli by proton binding, can undergo reversible transformation of self-assemblies and fluorescence switching by protonation–deprotonation.

Construction and luminescence property of a highly ordered 2D self-assembled amphiphilic bidentate organoplatinum(II) complex

Co-reporter:Yunjie Xiang, Wenjing Li, Yuxi Fang, Dengqing Zhang, Xianying Li and Wusong Jin

RSC Advances 2016 vol. 6(Issue 33) pp:27360-27369

Publication Date(Web):08 Mar 2016

DOI:10.1039/C6RA03553A

Rod-coil shaped amphiphilic bidentate dichloro(phenanthroline)platinum(II) complexes, 1-Pt and 2-Pt, which possess different hydrophilic lateral chains on one side of an identical aromatic rod core, are synthesized. 1-Pt first forms dimers then arranges into well-defined two-dimensional (2D) films consisting of highly ordered molecular arrays both from methanol and on substrate. 2-Pt, as a building-block, yields micrometer-sized rigid 2D sheets without formation of an initial dimer. Red luminescence of the film is induced by self-assembly of nonemissive 1-Pt molecules, whereas sheets based on nonemissive 2-Pt gives weak yellow emission. These results indicate that the coil-rod ratio plays an important role in the structure and optical properties of these self-assemblies. Moreover, the film on the substrate at the macroscopic scale, exhibits multi-stimuli responsiveness, which predicts its application in smart chemosensing devices and probes.

Visibly vapor-responsive structurally colored carbon fibers prepared by an electrophoretic deposition method

Co-reporter:Xiaofei Yuan, Zhifu Liu, Shenglong Shang, Hongzhi Wang, Qinghong Zhang, Yaogang Li and Wusong Jin

RSC Advances 2016 vol. 6(Issue 20) pp:16319-16322

Publication Date(Web):01 Feb 2016

DOI:10.1039/C5RA09917J

A new type of photonic crystal carbon fiber exhibits tunable structural colors upon exposure to organic vapors. This novel sensing fiber is prepared by depositing hydro-gel microspheres onto the carbon fiber using an electrophoretic method. This study will lead to substantial developments in low-powered and miniaturized fiber sensors.

Synthesis and coordination of star-shaped electron-deficient hexaheteroarylbenzene derivatives containing three pyrimidylbenzene derivatives

Co-reporter:Yunjie Xiang, Qiang Wang, Gang Wang, Xianying Li, Dengqing Zhang, Wusong Jin

Tetrahedron 2016 Volume 72(Issue 20) pp:2574-2580

Publication Date(Web):19 May 2016

DOI:10.1016/j.tet.2016.03.080

The synthesis of novel electron-deficient hexaheteroarylbenzene derivatives containing three pyrimidylbenzene derivatives 1 and 2 with carboxylic acidic arms is described. They are prepared through hydrolyzing pyrimidine-substituted carboxylated hexaheteroarylbenzene derivatives 8 and 9 by KOH, respectively. Compound 8 and 9 are synthesized via cobalt-catalyzed cyclotrimerization of methyl 4′-((2-dodecylpyrimidin-5-yl)ethynyl)-[1,1′-biphenyl]-4-carboxylate 7. The isomeric C3-symmetric compound 1 and unsymmetric 2 are successfully isolated by thin-layer chromatography in 1:2 ratios. The coordination of symmetric 1 titrated by Ag+, compared with unsymmetric 2, is investigated by UV–vis, fluorescence spectroscopy and TEM. The coordination of 1 and 2 with In3+ by solvothermal method is studied by SEM and TEM, respectively. These results indicate that the molecular configuration is an important factor, which influences the coordination behavior of these two hexaheteroarylbenzene derivatives.

Helix Sense-Selective Supramolecular Polymerization Seeded by a One-Handed Helical Polymeric Assembly

Co-reporter:Wei Zhang; Wusong Jin; Takanori Fukushima; Tadashi Mori;Takuzo Aida

Journal of the American Chemical Society 2015 Volume 137(Issue 43) pp:13792-13795

Publication Date(Web):October 19, 2015

DOI:10.1021/jacs.5b09878

Helix sense-selective supramolecular polymerization was achieved using a one-handed helical nanotubular polymeric assembly as a seed. First, bipyridine (BPY)-appended achiral hexabenzocoronene (BPYHBC) was copolymerized noncovalently with chiral BPYHBCS (or BPYHBCR) at a molar ratio of 9:1, which, via the sergeants-and-soldiers effect, afforded a P-helical (or M-helical) nanotube, which was then treated with Cu2+ to transform into structurally robust (BPY)CuNT(P) (or (BPY)CuNT(M)) with a Cu2+/BPY coordination polymer shell. Helical seeds (BPY)CuNT(P) and (BPY)CuNT(M) brought about the controlled assembly of fluorinated chiral FHBCS and FHBCR as well as achiral FHBC to yield one-handed helical nanotubular supramolecular block copolymers, in which the helical senses of the newly formed block segments were solely determined by those of the helical seeds employed. Noteworthy, FHBCS and FHBCR alone without the helical seeds form ill-defined agglomerates. Attempted supramolecular polymerization of a racemic mixture of FHBCS and FHBCR from (BPY)CuNT(P) (or (BPY)CuNT(M)) resulted in its chiral separation, affording P-helical (or M-helical) diastereomeric block segments composed of FHBCS and FHBCR with different thermodynamic properties.

Selective Synthesis of Single- and Multi-Walled Supramolecular Nanotubes by Using Solvophobic/Solvophilic Controls: Stepwise Radial Growth via Coil-on-Tube Intermediates

Co-reporter:Dr. Seelam Prasanthkumar;Dr. Wei Zhang;Dr. Wusong Jin;Dr. Takanori Fukushima;Dr. Takuzo Aida

Angewandte Chemie International Edition 2015 Volume 54( Issue 38) pp:11168-11172

Publication Date(Web):

DOI:10.1002/anie.201505806

Abstract

Novel hexa-peri-hexabenzocoronene (HBC) derivatives, ^FHBC and ^FHBC*, which carry perfluoroalkyl segments on one side of the HBC core and long alkyl tails on the other, were synthesized. Their perfluoroalkyl segments are highly solvated in C₆F₆ (solvophilic effect) and do not assemble, whereas in CH₂Cl₂, they are excluded (solvophobic effect) and assemble together consequently. For example, the use of C₆F₆ and CH₂Cl₂ as assembling media for ^FHBC leads to the selective formation of single- and multi-walled nanotubes, respectively. When a higher monomer concentration is applied in CH₂Cl₂, multi-walled nanotubes with a larger number of walls result. ^FHBC in CH₂Cl₂ self-assembles rather slowly, thereby allowing for the observation of coil-on-tube structures, which are possible intermediates for the stepwise radial growth of the nanotubular wall. Casting of the multi-walled nanotubes onto a quartz plate yields a superhydrophobic thin film with a water contact angle of 161±2°.

Selective Synthesis of Single- and Multi-Walled Supramolecular Nanotubes by Using Solvophobic/Solvophilic Controls: Stepwise Radial Growth via Coil-on-Tube Intermediates

Co-reporter:Dr. Seelam Prasanthkumar;Dr. Wei Zhang;Dr. Wusong Jin;Dr. Takanori Fukushima;Dr. Takuzo Aida

Angewandte Chemie 2015 Volume 127( Issue 38) pp:11320-11324

Publication Date(Web):

DOI:10.1002/ange.201505806

Abstract

Size-Selective Recognition by a Tubular Assembly of Phenylene–Pyrimidinylene Alternated Macrocycle through Hydrogen-Bonding Interactions

Co-reporter:Duoduo Xiao, Dengqing Zhang, Beihua Chen, Dahai Xie, Yunjie Xiang, Xianying Li, and Wusong Jin

Langmuir 2015 Volume 31(Issue 39) pp:10649-10655

Publication Date(Web):September 16, 2015

DOI:10.1021/acs.langmuir.5b02273

Study of artificial tubular assemblies as a useful host scaffold for size-selective recognition and release of guest molecules is an important subject in host–guest chemistry. We describe well-defined self-assembled nanotubes (NT6mer) formed from π-conjugated m-phenylene–pyrimidinylene alternated macrocycle 16mer that exhibit size-selective recognition toward a specific aromatic acid. In a series of guest molecules, a size-matched trimesic acid (G3) gives inclusion complexes (NT6mer⊃G3) in dichloromethane resulting in an enhanced and red-shifted fluorescence. 1H nuclear magnetic resonance (NMR) titration experiments indicated that the complex was formed in a 1:1 molar ratio. Density functional theory (DFT) calculations and the binding constant value (K = 1.499 × 105 M–1) of NT6mer with G3 suggested that the complex involved triple hydrogen-bonding interactions. The encapsulated guest G3 molecules can be readily released from the tubular channel through the dissociation of hydrogen bonding by the addition of a polar solvent such as dimethylsulfoxide (DMSO). In contrast, 16mer could not form self-assembled nanotubes in CHCl3 or tetrahydrofuran (THF) solution, leading to weak or no size-selective recognizability, respectively.

Palladium-catalyzed borylation of m-dibromobenzene derivative and its applications in one-pot tandem Suzuki–Miyaura arenes synthesis

Co-reporter:Dahai Xie, Rong Li, Dengqing Zhang, Jiena Hu, Duoduo Xiao, Xianying Li, Yunjie Xiang, Wusong Jin

Tetrahedron 2015 Volume 71(Issue 47) pp:8871-8875

Publication Date(Web):25 November 2015

DOI:10.1016/j.tet.2015.10.011

One-step synthesis of several α,ω pinacol boronates starting from m-dibromobenzene derivative and bis(pinacolato)diboron through Miyaura reaction has been reported. The present approach provided low to moderate yields of monomer boronates, and trace to low yields of dimmer, trimer and tetramer boronates. Furthermore, the resulted boronates can be followed by Suzuki–Miyaura cross-coupling without purification, which enhances the practical usefulness of this method.One-step synthesis of monomer, dimmer, trimer, and tetramer boronates through Miyaura reaction in a moderate yields has been reported. Furthermore, the boronates can be followed by Suzuki–Miyaura cross-coupling without purification.

Highly selective and sensitive colorimetric probe for hydrogen sulfide by a copper (II) complex of azo-dye based on chemosensing ensemble approach

Co-reporter:Dengqing Zhang, Wusong Jin

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2012 90() pp: 35-39

Publication Date(Web):

DOI:10.1016/j.saa.2012.01.013

Tunable luminescence of cyclometallated platinum(II) derivatives based on novel pyrimidine-contained tridentate Pt(NˆCˆN)Cl complexes

Co-reporter:Xianying Li, Jiena Hu, Yang Wu, Rong Li, Duoduo Xiao, Wang Zeng, Dengqing Zhang, Yunjie Xiang, Wusong Jin

Dyes and Pigments (June 2017) Volume 141() pp:

Publication Date(Web):June 2017

DOI:10.1016/j.dyepig.2017.02.020

Two novel tridentate Pt(NˆCˆN)Cl complexes, 1a and 2a, with an electron-deficient pyrimidine-contained NˆCˆN tridentate ligand, were synthesized and characterized. Single crystal X-ray diffraction of 1a revealed a cyclometallated square-planar geometry. In the single crystal, 1a adopted a head-to-head dimeric form with the shortest Pt⋯Pt distance of 4.22 Å and π–π stacking affording one-dimensional nanostructure along a-axial direction. Interestingly, in contrast to 1a, Pt⋯Pt interaction of 2a, with a flexible alkyl chain substituent, could be induced by facile solution processable self-assembly, allowing for modulation of luminescence from visible to near-IR (NIR) region.

Reversible transformation of self-assemblies and fluorescence by protonation–deprotonation in pyrimidinylene–phenylene macrocycles

Co-reporter:Duoduo Xiao, Siqi Zhang, Dengqing Zhang, Dahai Xie, Qingdao Zeng, Yunjie Xiang, Ruguang Ning, Xianying Li and Wusong Jin

Chemical Communications 2016 - vol. 52(Issue 23) pp:NaN4360-4360

Publication Date(Web):2016/02/19

DOI:10.1039/C6CC00943C