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State-of-the-art and recent progress in resorcinarene-based cavitand

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Chinese Chemical Letters 2023年第10期34卷 27-34页

作者： Kaiya Wang Qian Liu Li Zhou Hao Sun Xiaoquan Yao Xiao-Yu Hu College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Compartmentalization in the biological world brings excellent efficiency and specificity to the formation of complex compounds,inspiring supramolecular chemists to continuously search for defined spaces that can mimic such natural binding ***-shaped cavitands built up from resorcinarenes(RA)present rigid and preorganized concave surfaces,which are capable of mimicking the molecular recognition properties of *** versatile scaffold of RA endows the cavitand with terrific variety and excellent binding *** review provides a comprehensive overview over the structural modification to date in the high attention field of RA-based cavitands *** strategies for synthesizing diverse cavitands,such as small cavity cavitands,wider cavity cavitands,deep cavity cavitands,biscavitands,and asymmetric cavitands,are discussed in ***,insights into their applications including catalysis,separations and sensing are provided.

关键词： Resorcinarene Cavitand supramolecular chemistry Host-guest chemistry Molecular recognition

Photooxidation of IR-820 by Calixpyridinium-Induced Assembled Material and Its pH-Controlled Visual Multicolor Luminescence

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Chinese Journal of chemistry 2022年第9期40卷 1045-1052页

作者： Kui Wang Guo-Jie Gao Xiao-Yan Wang Tianjin Key Laboratory of Structure and Performance for Functional Molecules College of ChemistryTianjin Normal UniversityTianjin 300387China

In this work,a spherical calixpyridinium-IR-820 supramolecular assembled material was fabricated based on the calixpyridiniuminduced IR-820 *** assembled material exhibited a well visible light responsiveness by the photodecomposition of aggregated IR-820 accompanied by an obvious color *** photochromic material has many potential *** interestingly,the photodecomposition of aggregated IR-820 was significantly promoted,although the aggregated photosensitizers usually exhibited a lower *** approach can be further extended to construct various visible-light responsive supramolecular assembled materials and potentially applied in many ***,benefitting from the pH-dependent luminescent properties of calixpyridinium and the photodegradation products of IR-820,a pH-controlled visual multicolor luminescence was achieved,which was perfectly applied in the detection of pH from 5 to 10 by naked eyes.

关键词： Macrocycles Luminescence supramolecular chemistry Calixpyridinium Light responsiveness

Impact of Polymer Matrix on Polymer Mechanochromism from Excited State Intramolecular Proton Transfer

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Chinese Journal of chemistry 2024年第6期42卷 611-616页

作者： Yu Wu Xin Cheng Huan Hu Shui Hu Zhimin Ma Zhiyong Ma Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing State Key Laboratory of Organic-Inorganic CompositesCollege of Chemical EngineeringBeijing University of Chemical TechnologyBeijing100029 China Center of Advanced Elastomer Materials College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing100029 China College of Engineering Peking UniversityBeijing100871 China

Mechanochromic polymers based on non-covalent changes have attracted much attention ***,we report the impact of inter/intramolecular hydrogen bonds on polymer mechanochromism from the excited state intramolecular proton transfer (ESIPT) ***-NH2-OH and PhMz=2A are designed and obtained by simple and high-yield synthesis,and are connected into polyurethane and poly(methyl acrylate-co-2-ethylhexyl acrylate),*** the initial state,the PhMz-NH2-OH@PU sample shows blue fluorescence from the excited enol form (E*) excitons,owing to intermolecular hydrogen bonds that interrupt the ESIPT reactions but the PhMz=2A@PMA-2-EA sample expresses cyan fluorescence belonging to the excited keto form (K*) emission,implying that the intramolecular hydrogen bonds ***,under stretching,external force can tune the emission of the PhMz=2A@PMA-2-EA sample from K* to E* *** external force can putatively still promote a bond rotation,ESIPT reactions remain equivalently interrupted in both the relaxed and stressed states in a hydrogen-bond donating *** calculation confirms the force-induced increase in dihedral angle for the transition of ESIPT-on/***,PhMz-NH2-OH@PU and PhMz=2A@PMA-2-EA showed disparate initial ESIPT states and further different responses/sensitivity to *** study reports a novel and efficient strategy for enriching mechanochromic investigation and extending the applications of ESIPT reactions.

关键词： Polymer mechanochromism Excited state intramolecular proton transfer Hydrogen bonding supramolecular chemistry Elastomers

Highly active artificial potassium channels having record-high K^(+)/Na^(+) selectivity of 20.1

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Chinese Chemical Letters 2023年第12期34卷 189-195页

作者： Haowen Ma Ruijuan Ye Lei Jin Shaoyuan Zhou Changliang Ren Haisheng Ren Jie Shen Huaqiang Zeng College of chemistry Fuzhou UniversityFuzhou 350116China School of chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi'an 710072China School of Pharmaceutical Sciences Xiamen UniversityXiamen 361102China Shenzhen Research Institute Xiamen UniversityShenzhen 518000China College of Chemical Engineering Sichuan UniversityChengdu 610065China

Replicating extraordinarily high membrane transport selectivity of protein channels in artificial channel is a challenging *** this work,we demonstrate that a strategic application of steric code-based social self-sorting offers a novel means to enhance ion transport selectivities of artificial ion channels,alongside with boosted ion transport *** specifically,two types of mutually compatible sterically bulky groups(benzo-crown ether and tert-butyl group)were appended onto a monopeptide-based scaffold,which can order the bulky groups onto the same side of a one-dimensionally aligned H-bonded *** steric repulsions among the same type of bulky groups(either benzo-crown ethers or tert-butyl groups),which are forced into proximity by H-bonds,favor the formation of hetero-oligomeric ensem-bles that carry an alternative arrangement of sterically compatible benzo-crown ethers and tert-butyl groups,rather than homo-oligomeric ensembles containing a single type of either benzo-crown ethers or tert-butyl *** with side chain tuning,this social self-sorting strategy delivers highly ac-tive hetero-oligomeric K+-selective ion channel(5F12-BF12)_(n),displaying the highest K+/Na+selectivity of 20.1 among artificial potassium channels and an excellent ECso value of 0.50μmol/L(0.62 mo1%relative to lipids)in terms of single channel concentration.

关键词： supramolecular chemistry Artificial membrane transporters Artificial potassium channels Crown ethers Social self-sorting Transport selectivity

Artificial Water Channel Promoting Depolymerization of Actin Filaments to Trigger Cancer Cell Apoptosis

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Chinese Journal of chemistry 2024年第12期42卷 1335-1340页

作者： Lei Zhang Yin-Gui Cao Ting Fan Jjiatong Zhao Yong-Hong Fu Qi Xiao Zhan-Ting Li Yunfeng Wang Bo Xiao Jun-Li Hou Department of chemistry Fudan University220 Handan RoadShanghai 200433China State Key Laboratory of Silkworm Genome Biology Cllege of SericultureTextileand Biomass Sciences InstitutionSouthwest UniversityChongqing400715China ENT Institute and Otorhinolaryngology Department of Eye&ENT Hospital Fudan UniversityShanghai 200031 Fudan International School 325 Guoquan RoadShanghai 200433China

Actin filaments play important physiological functions,which have become potential targets of antitumor *** chemicals to intervene their polymerization-depolymerization dynamics would generate new strategies for designing antitumor *** this report,an artificial water channel appending acetazolamide moiety,a ligand that can selectively bind to carbonic anhydrase IX,has been prepared.

关键词： Artificial water channel Actin depolymerization Cell apoptosis Nanostructures Molecular recognition supramolecular chemistry

Amide naphthotubes:Biomimetic macrocycles for selective molecular recognition

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Chinese Chemical Letters 2024年第4期35卷 124-131页

作者： Cheng-Da Zhao Huan Yao Shi-Yao Li Fangfang Du Li-Li Wang Liu-Pan Yang School of Pharmaceutical Science Postdoctoral Research Station of Basic MedicineHengyang Medical SchoolUniversity of South ChinaHengyang 421001China

Selective molecular recognition in water is routine for bioreceptors,but remains challenging for synthetic *** is principally because noncovalent interactions are usually less efficient in aqueous *** mimicking the cavity feature of bioreceptors,*** Jiang proposed and clarified the concept of“endo-functionalized cavity”.Through situating polar binding sites into a deep hydrophobic cavity,we designed and synthesized several macrocyclic hosts,among which amide naphthotubes are the most *** hosts can selectively recognize various polar molecules including organic micropollutants,drug molecules,and chiral molecules in water by employing the hydrophobic effect and shielded hydrogen *** addition,these biomimetic hosts have been applied in spectroscopic analysis,adsorptive separation and *** this review,we provide an overview of recent advances on amide naphthotubes with special emphasis on the efforts of Jiang's *** are convinced that these biomimetic macrocycles will make further contributions to supramolecular chemistry and beyond.

关键词： Molecular recognition supramolecular chemistry Amide naphthotube Endo-functionalized cavity Biomimetic macrocycle

Poly[2]catenane Gels Based on Sequential Assembly of Small Molecules

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Chinese Journal of chemistry 2024年第22期42卷 2699-2704页

作者： Hanwei Zhang Jinsa Li Ziqing Hu Xiaofan Ji Xi'an Rare Metal Materials Institute Co.Ltd. Xi'anShaanxi 710016China Key Laboratory of Materials chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Materials Chemistry and Service FailureHubei Engineering Research Centerfor Biomaterials and Medical Protective MaterialsState Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Chemistry and Chemical EngineeringHuazhong University ofScienceandTechnologyWuhanHubei430074China

Comprehensive Summary Polycatenane gels have attracted extensive attention due to their high degree of freedom and ***,the syntheses of poly[2]catenane gels reported to date all rely on the polymer as the ***,we prepared poly[2]catenane gels based on entirely sequential assembly of small *** M1 with two unclosed rings was first prepared,which self-assembled to form supramolecular polymers(SPs)via hydrogen bonding andπ-π*** adding small molecule monomers M2 and M3 with aldehyde groups,ring closing of SPs occurred because the amino groups in the SPs reacted with M2 to form imine *** addition,M3,which had twice the number of aldehyde groups as M2,enabled SPs to ring-close,causing the proceeding of crosslinking process at the same *** linear SPs were transformed into poly[2]catenane gel *** to the presence of hydrogen bonds in the poly[2]catenane gel,the gel also possessed stimulus responsiveness and self-healing properties.

关键词： Polycatenane Gel Dynamic covalent bond Non-covalent bond Self-assembly Stimuli-responsiveness supramolecular chemistry Networks Hydrogenbonding

A Novel Tripyridyldiamine Nickel Complex:Synthesis, Structure and Characterization

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Chinese Journal of Structural chemistry 2021年第1期40卷 91-95,4页

作者： LI Yan WANG Wen-Zhen TANG Chang-Sheng JIA Xin-Gang FAN Wei WANG Li School of chemistry and Chemical Engineering Xi’an Shiyou UniversityXi’an 710065China

A novel nickel(II)complex[Ni(H2 tpda)(NCS)2(CH3 OH)]was synthesized by using tripyridyldiamine as ligand and Ni(NCS)2 as starting materials,and characterized by a variety of techniques including single-crystal X-ray diffraction,IR spectroscopy and *** single-crystal structure reveals that the complex exhibits as a neutral molecule and that the central atom Ni(II)is octahedrally coordinated by an H2 tpda,two NCS-ions and a ligand molecule CH3 *** 3 D supramolecular network is formed through hydrogen bonds andπ-π*** complex can catalyze the addition reaction of carbon dioxide and propylene oxide.

关键词： tripyridyldiamine functional complexes supramolecular chemistry crystal structures

Self-assembly into Polymorphic 2D Nanosheets with Crystallization-Induced Emission Enhancement

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Chinese Journal of chemistry 2022年第7期40卷 832-837页

作者： He Zhang Dong Jin Dongqing Lin Lei Huang Jin Wang Shasha Wang Linghai Xie Centre for Molecular Systems and Organic Devices(CMSOD) Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced MaterialsJiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&TelecommunicationsNanjingJiangsu 210023China

Organic micro/nanocrystals with polymorphic tailorability and perfect platform to modulate decode the complex relationship among molecular structures,supramolecular/noncovalent interactions,aggregates and exciton ***,we precisely tune the polymorphic two-dimensional organic nanosheets(2DONs)of cyano-spirocyclic aromatic hydrocarbon(2'-CN-SFX),where the crystal growth processes are dominated by precursor *** low concentration(ca.2 mmol/L)affords the rhombus-like nanosheets with monoclinic P21/c space group,in which molecules adopt antiparallel and slipped stacking *** contrast,the high concentration(ca.4 mmol/L)favors herringbone-like molecular packing pattern and then generates shuttle-like nanosheets with monoclinic C2/c space *** above polymorphic nanosheets exhibit unprecedented crystallization-induced emission en-hancement(CIEE)feature that increases the photoluminescence quantum yields(PLQYs)from 16%in solution,21%in amorphous film to 37%-39%in crystalline *** result will offer promising opportunities for nanophotonics and organic intelligent semi-conductors.

关键词： Polymorphism Self-assembly 2D nanostructures Steric design Crystallization-induced emission enhancement supramolecular chemistry