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Artificial stepwise light harvesting system in water constructed by quadruple hydrogen bonding supramolecular polymeric nanoparticles

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Chinese Chemical Letters 2024年第2期35卷 370-373页

作者： tangxin xiao Xiuxiu Li Liangliang Zhang Kai Diao Zheng-Yi Li xiao-Qiang Sun Leyong Wang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Stepwise energy transfer is ubiquitous in natural photosynthesis,which greatly promotes the widespread use of solar ***,we constructed a supramolecular light harvesting system based on sequential energy transfer through the hierarchical self-assembly of M,which contains a cyanostilbene core flanked by two ureidopyrimidinone motifs,endowing itself with both aggregation-induced emission behavior and quadruple hydrogen bonding *** monomer M can self-assemble into hydrogen bonded polymers and then form supramolecular polymeric nanoparticles in water through a mini-emulsion *** nanoparticles were further utilized to encapsulate the relay acceptor ESY and the final acceptor NDI to form a two-step FRET *** fluorescence including a white-light emission was successfully *** work not only shows a desirable way for the fabrication of efficient two-step light harvesting systems,but also shows great potential in tunable photoluminescent nanomaterials.

关键词： Light harvesting system Supramolecular polymer Quadruple hydrogen bonding AIE Self-assembly

Recent advances in two-step energy transfer light-harvesting systems driven by non-covalent self-assembly

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Chinese Chemical Letters 2024年第1期35卷 31-39页

作者： Zhiying Wu Hongwei Qian Xiuxiu Li tangxin xiao Leyong Wang Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Sequential energy transfer is ubiquitous in natural light-harvesting systems(LHSs),which greatly promotes the exploitation of light *** LHSs in nature are sophisticated supramolecular assemblies of chlorophyll molecules that carry out efficient light harvesting through cascade energy transfer *** by nature,scientists have paid much attention to fabricate stepwise LHSs based on assorted supramolecular scaffolds in recent ***-harvesting antennas and energy acceptors can be accommodated in particular scaffolds,which offer great convenience for energy transfer between *** systems not only further mimic photosynthesis,but also demonstrate many potential applications,such as photocatalysis,tunable luminescence,and information encryption,*** this review article,aiming at offering a practical guide to this emerging research field,the introduction of construction strategies towards sequential LHSs will be *** scaffolds are classified and highlighted,including host-guest assemblies,metal-coordination assemblies,as well as bio-macromolecular and other supramolecular scaffolds.

关键词： Light-harvesting system Supramolecular self-assembly Sequential energy transfer Tunable fluorescence FRET

Novel Macrocycles Bearing Dithienylethene Units and Urea Functional Groups Synthesis, Structure and Photochromic Property

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Chinese Journal of Chemistry 2013年第5期31卷 627-634页

作者： tangxin xiao Shaolu Li xiaoning Zhang Chen Lin LeyongWang Key Laboratory of Mesoscopic Chemistry of Ministry of Education Center for Multimolecular Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210093 China

Two novel photochromic macrocycles 1 and 2 bearing dithienylethene units and urea building blocks have been synthesized, and their photochromic properties are described. Macrocycle 2 shows good photochromic properties, while the relatively smaller size of macrocycle 8h exhibits photochemically inactive properties due to the unfa- vourable ring conformational constraint. Moreover, the crystal structures of the urea-protected precursor macrocyles 3a, 3h, and 8b are presented.

关键词： photochromism macrocycles dithienylethene urea derivatives supramolecular chemistry

Supramolecular polymers fabricated by orthogonal self-assembly based on multiple hydrogen bonding and macrocyclic host–guest interactions

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Chinese Chemical Letters 2020年第1期31卷 1-9页

作者： tangxin xiao Ling Zhou xiao-Qiang Sun Feihe Huang Chen Lin Leyong Wang School of Petrochemical Engineering Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164China State Key Laboratory of Chemical Engineering Center for Chemistry of High Performance&Novel MaterialsDepartment of ChemistryZhejiang UniversityHangzhou 310027China Key Laboratory of Mesoscopic Chemistry of MOE Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Supramolecular polymers constructed by orthogonal self-assembly based on multiple hydrogen bonding and macrocyclic host-guest interactions have received increasing attention due to their elegant structures,outstanding properties,and potential *** bonding endows these supramolecular polymers with good adaptability and reversibility,while macrocyclic host-guest interactions give them good selectivity and versatile ***,functional supramolecular polymers fabricated by these two highly specific,noninterfering interactions in an orthogonal way have shown wide applications in the fields of molecular machines,electronics,soft materials,*** this review,we discuss the recent advances of functional supramolecular polymers fabricated by orthogonal self-assembly based on multiple hydroge n bonding and host-guest *** particular,we focus on crown ether-and pillar[n]arene-based supramolecular polymers due to their compatibility with multiple hydrogen bonds in organic *** fabrication strategies,interesting properties,and potential applications of these advanced supramolecular materials are mainly concerned.

关键词： Supramolecular polymer Orthogonal self-assembly Hydrogen bonding Host-guest interactions Stimuli-responsiveness

Preparation of a fixed-tetraphenylethylene motif bridged ditopic benzo-21-crown-7 and its application for constructing AIE supramolecular polymers

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Chinese Chemical Letters 2021年第4期32卷 1377-1380页

作者： tangxin xiao Jie Wang Yong Shen Cheng Bao Zheng-Yi Li xiao-Qiang Sun Leyong Wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China School of Chemistry and Chemical Engineering Nanjing UniversityNanjing 210023China

Benzo-21-crown-7(B21 C7)is one of the most important crown ethers,which not only shows excellent physicochemical properties but also exhibits promising binding capability with dialkylammonium *** this paper,we designed and synthesized a fixed-tetraphenylethylene(FTPE)motif bridged ditopic benzo-21-crown-7 molecule(H).The fixed tetraphenylethylene motif endows H with aggregation induced emission(AIE)prope *** the presence of a ditopic dialkylammonium salt guest molecule(G),a fluorescent supramolecular polymer with golden luminescent property could be *** B21 C7-based host-guest supramolecular polymer with golden fluorescence may have potential application in dynamic luminescent materials.

关键词： Benzo-21-crown-7 Host-guest interaction Supramolecular polymer Fluorescent materials AIE

Construction of a sequential light-harvesting system via supramolecular copolymerization

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中国化学快报:英文版 2023年第8期34卷 1-2页

作者： Hongwei Qian tangxin xiao Robert B.P.Elmes Leyong Wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Department of Chemistry Maynooth UniversityNational University of IrelandMaynoothCo.KildareIreland State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

The current energy crisis is a worldwide problem and the search for clean and economic energy production is a global *** this context,the exploitation and utilization of solar energy is becoming more and more *** in nature sets an outstanding example to harvest,transfer and store solar energy[1].In most of the photosynthetic organisms such as purple photosynthetic bacteria,the rigid protein scaffolds serve as key elements to bind pigments and control their excitation energy *** energy transfer is especially intriguing in this field to make full use of full-band solar *** mimic natural photosynthesis[2].

关键词： becoming harvesting store

Dynamic materials fabricated from water soluble pillar[n]arenes bearing triethylene oxide groups

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Chinese Chemical Letters 2019年第2期30卷 271-276页

作者： tangxin xiao Ling Zhou Lixiang Xu Weiwei Zhong Wei Zhao xiao-Qiang Sun Robert B.P.Elmes School of Petrochemical Engineering Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University Department of Chemistry Maynooth University National University of Ireland

Pillar[n]arenes are a new kind of supramolecular macrocyclic hosts which have developed rapidly due to their unique topology and high functionality, giving rise to many applications in the construction of interesting and functional materials. Among them, water-soluble pillar[n]arenes bearing triethylene oxide (TEO) chains have drawn increasing research interest due to their advantageous properties. In this review, we summarized the recent progress of dynamic materials fabricated from water soluble pillar[n]arenes bearing TEO groups, including thermo responsive materials with lower critical solution temperature (LCST) behavior, cyclic host liquids, and smart windows. It is anticipated that more and more ‘smart' supramolecular materials based on modified pillar[n]arenes will be developed in this burgeoning area of research.

关键词： Pillar[n]arenes Host-guest interactions LCST Thermoresponsive materials Smart window

Artificial light-harvesting systems fabricated by supramolecular host–guest interactions

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Chinese Chemical Letters 2019年第1期30卷 31-36页

作者： tangxin xiao Weiwei Zhong Ling Zhou Lixiang Xu xiao-Qiang Sun Robert B.P.Elmes xiao-Yu Hu Leyong Wang School of Petrochemical Engineering Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University Department of Chemistry Maynooth University National University of Ireland Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical Engineering Nanjing University

Artificial light-harvesting systems(LHSs) have drawn increasing research interest in recent times due to the energy crisis worldwide. Concurrently, macrocycle-based host–guest interactions have played an important role in the development of supramolecular chemistry. In recent years, studies towards artificial LHSs driven by macrocycle-based host–guest interactions are gradually being disclosed. In this mini-review, we briefly introduce the burgeoning progress of artificial LHSs driven by host–guest interactions. We believe that an increasing number of reports of artificial LHSs driven by host–guest interactions will appear in the near future and will provide a viable alternative for the future production of renewable energy.

关键词： Light-harvesting systems Macrocycle Host-guest interactions Supramolecular chemistry Self-assembly

Construction of molecular nanotubes with precise length,diameter and chirality

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中国化学快报:英文版 2023年第9期34卷 3-4页

作者： Qiaona Zhang Hongwei Qian tangxin xiao Robert B.P.Elmes Leyong Wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Department of Chemistry Maynooth UniversityNational University of IrelandMaynoothCo.KildareIreland State Key Laboratory of Analytical Chemistry for Life Science Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Molecular nanotubes are nanoscale organic materials with tubular architecture,that show potential applications in molecular recognition/separation,cross-membrane transportation,catalysis in confined spaces,and nanoelectronics[1].However,the precise construction of molecular nanotubes with well-defined cavity sizes and shapes is non-trivial.

关键词： precise sizes molecular