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Chinese Chemical Letters 2023年第1期34卷 378-381页

作者： Zheng-Hua Zhang You-Ming Zhang Wen-Juan Qu Bingbing Shi Hong Yao tai-bao wei Key Laboratory of Eco-environmental Polymer Materials of Gansu Province College of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China Gansu Natural Energy Research Institute Lanzhou 730046China

Supramolecular chemistry has received considerable attention in host-guest *** structureresponse relationship of host-guest recognition system is a meaningful ***,a series of tripodal nitrogen mustard derivatives(TMs)have been developed in this *** rationally design the intramolecular alkyl chain lengths of host,the host-guest binding model have been successfully tuned,which underwent a transformation fromπ-πto multiple hydrogen *** process enhances the host-guest binding force and recognition efficiency.

关键词： Host-guest recognition Supramolecular interactions Fluorescent Intramolecular alkyl chain Aggregation induced emission

A novel fused bi-macrocyclic host for sensitive detection of Cr_(2)O_(7)^(2-)based on enrichment effect

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Chinese Chemical Letters 2024年第7期35卷 291-295页

作者： Ting-Ting Huang Jin-Fa Chen Juan Liu tai-bao wei Hong Yao Bingbing Shi Qi Lin Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission Gansu Provincial Biomass Function Composites Engineering Research CenterCollege of Chemical EngineeringNorthwest Minzu University(Northwest University for Nationalities)Lanzhou 730000China

Improving the highly selective and sensitive binding of chemosensor to target guest is always very *** order to solve this issue,herein,the enrichment effect was introduced into the design of chemosensor molecule.A novel bi-fused-macrocyclic host molecule BPN1 was synthesized by bridging a pillar[5]arene and a naphthalene diimide(NDI)group through hydrogen-bond-rich *** the BPN1,the naphthalimide side ring is outside the cavity of the pillar[5]*** addition,Cr(VI)greatly threat human health and the environment due to its severe toxicity,and it is very important to develop effective chemosensor for sensitive and selective detection of Cr_(2)O_(7)^(2-)or its ion *** this paper,the novel bi-fused-macrocyclic host molecule BPN1 can recognize Cr_(2)O_(7)^(2-)with high selectivity and *** mechanism of BPN1 recognition of Cr_(2)O_(7)^(2-)was studied through experiments and density functional theory(DFT),the results show that BPN1 could supply enrichment effect to bind Cr_(2)O_(7)^(2-)through multiple weak interactions such as hydrogen bonds and anion-π,and achieve highly sensitive and selective detection of Cr_(2)O_(7)^(2-).It is a significant and feasible strategy for improve high selectivity and sensitivity of host to specific objects by using the enrichment effect of fused bi-macrocyclic.

关键词： Pillararene Bi-macrocyclic Detection of Cr_(2)O_(7)^(2−) DFT The enrichment effect

Influence of Monomers'Structure on the Assembly and Material Property of Pillar[5]arene-Based Supramolecular Polymer Gels

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Chinese Journal of Chemistry 2021年第12期39卷 3421-3428页

作者： Juan Liu Xiao-Wen Sun Ting-Ting Huang You-Ming Zhang Hong Yao tai-bao wei Qi Lin College of Chemical Engineering Northwest Minzu University(Northwest University for Nationalities)Xibei XincunLanzhouGansu 730000China Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhouGansu 730070China

Pillar[5]arene-based supramolecular polymer gels(SPGs)show broad application *** investigate the influence of the supramolecular monomers'structure on the assembly and properties of corresponding pillar[5]arene-based SPGs,a series of monomers based on different functionalized pillar[5]arene derivatives with various structures were *** are per-methylated pillar[5]arene(H1),bromobutane-functionalized pillar[5]arene(H2),4-hydroxybenzaldehyde-functionalized pillar[5]arene(H3),ethyl thioglycolate-functionalized pillar[5]arene(H4),thioacetylhydrazine-functionalized pillar[5]arene(H5),bola-type bis-pillar[5]arene(H6)and tripodal-type tri-pillar[5]arene(H7).Meanwhile,a neutral tripodal-guest TG was also employed to co-assemble with these pillar[5]arene-based monomers by host-guest *** a result,under the same conditions(10%,DMSO-H_(2)O,w/v,10 mg·mL^(-1)=1%),H1 and H2 cannot assemble into SPGs with ***,mono-p[5]derivatives H3—H5 could assemble into SPGs with *** importantly,bis-p[5]H6 and tri-p[5]H7 could assemble into supramolecular polymer network gel(SPNG)and supramolecular polymer organic framework gel(SOFG)with TG,*** gels all show blue aggregation-induced emission(ALE)*** these SPGs,the SPNG shows the best viscoelastic behavior and self-healing *** result is attributed to the flexible network structure of *** addition,the xerogels of SOFG and SPNG have shown nice adsorption and separation properties for organic dyes in water solution.

关键词： Pillararerie Host-guest systems Self-assembly Aggregation Structure-activity relationships

PHASE　TRANSFER　CATALYZED　SYNTHESIS　OF　DIARYL　2－NITRO－1，4－PHENYLENEDIOXYDIACETATES

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Chinese Chemical Letters 1996年第7期7卷 600-602页

作者： Xi Cun WANG tai bao wei Ji Chou CHEN(Department of Chemistry.Northwest Normal Universiry,Lanzhou 730070) NW NORMAL UNIV DEPT CHEMLANZHOU 730070PEOPLES R CHINA

A series of new diaryl 2-nitro-1, 4-phenylenedioxydiacestates were synthesized bythe reaction of 2-nitro-1,4-phenylenedioxydiacetyl chloride with various substituted phenolsunder the condition of liquid-liquid phase t...

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Pillar[5]arene and Azine Derivative Assembly Improved Dual-Channel Detection of CN^(-)

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Chinese Journal of Chemistry 2024年第20期42卷 2471-2478页

作者： Qing-Ling Su Jin-Fa Chen Xiao-Mei Sun Juan Liu Xin-Yu Dai tai-bao wei Hong Yao Qi Lin Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhouGansu 730070China Key Laboratoryof Environment-Friendly Composite Materials of the State Ethnic Affairs Commission Gansu Provincial Biomass Function Composites Engineering Research CenterCollege of Chemical EngineeringNorthwest Minzu University(Northwest Universityfor Nationalities)Xibei XincunLanzhouGansu 73000oChina

The cyanide anion(CN^(–))is known to be one of the most toxic ***,there is an urgent need to develop a reliable,sensitive,selective,rapid and effective method for the detection of CN^(–).Here,a self-assembly strategy based on pillar[5]arene P5 and azine derivative AZ was used to construct supramolecular sensors,and it was found that the detection effect of CN^(–)was significantly improved by the assembly *** sensitivity of the assembled sensor P5-AZ to CN^(–)is more than 10 times higher than that of *** detect mechanism was further investigated by theoretical calculations and 1H *** results showed that AZ detects CN–by a deprotonation process with fluorescence enhancement,while P5-AZ improves the sensitivity of CN^(–)recognition through hydrogen bonding,anion-πand anion-dipole interactions,as well as the strong bonding ability of the *** assembly P5-AZ has the advantages of low toxicity,high sensitivity,and more importantly,it provides a method to detect CN^(–)sensitivity in the aqueous phase and organisms by host-guest assembly.

关键词： Host-guest assembly Improves sensing sensitivity Pillararene Azine derivative Cyanide Supramolecular sensors Energy transfer Colorimetric fluorescence dual-channel Fluorescence cell imaging

A Pd_(2)L_(4) Metallacage-Cored Supramolecular Amphiphile and Its Application in Dual-Responsive Controllable Release

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Chinese Journal of Chemistry 2022年第20期40卷 2421-2427页

作者： Yongping Chai Peng Qin Xupeng Li tai-bao wei Qi Lin You-Ming Zhang Hong Yao Wen-Juan Qu Bingbing Shi Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhouGansu730070 China Gansu Natural Energy Research Institute LanzhouGansu730046 China

The construction of multi-responsive supramolecular systems for drug delivery is a challenging *** this work,a Pd_(2)L_(4) metallacage 1·([BF_(4)]^(−))_(4) with four pyrene units was first designed and synthesized through coordination-driven *** the introduction ofγ-CD,a supramolecular amphiphile 1–γ-CD was successfully constructed based on the host–guest molecular recognition betweenγ-CD and the pyrene unit of 1·([BF_(4)]^(−))_(4),which further self-assembled into dual-responsive supramolecular vesicles in aqueous ***·HCl was used as a model molecule to study the drug encapsulation and release behavior of the supramolecular *** adjusting the pH of the solution to acidic condition or adding a certain amount ofα-amylase,the vesicle structure was destroyed to achieve rapid and effective release of the drug *** study provides an example for the rational design of efficient dual-responsive supramolecular nanocarriers,which have potential application value in the field of controlled drug delivery.

关键词： Self-assembly Molecular recognition Metallacages Host-Guest systems Controllable release

A supramolecular oligo[2]rotaxane constructed by orthogonal platinum(Ⅱ) metallacycle and pillar[5]arene-based host–guest interactions

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Chinese Chemical Letters 2024年第10期35卷 201-204页

作者： Bingbing Shi Yuchun Wang Yi Zhou Xing-Xing Zhao Yizhou Li Nuoqian Yan Wen-Juan Qu Qi Lin tai-bao wei Key Laboratory of Polymer Materials of Gansu Province College of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070.China

Oligo[n]rotaxanes are one of the most extensively studied categories of mechanically bonded *** this study,a supramolecular oligo[2]rotaxane is successfully constructed driven by platinum(Ⅱ)metallacycle and pillar[5]arene-based host–guest interactions in an orthogonal *** supramolecular oligo[2]rotaxane is further applied in fabricating a light harvesting system.

关键词： Pillararene Metallacycles Host-guest interactions Light-harvesting system Mechanically interlocked molecules

Novel conductive metallo-supramolecular polymer AIE gel for multi-channel highly sensitive detection of hydrazine hydrate

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Chinese Chemical Letters 2023年第8期34卷 167-170页

作者： Yu Jia Wen-Li Guan Juan Liu Jian-Peng Hu Bingbing Shi Hong Yao You-Ming Zhang tai-bao wei Qi Lin Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China College of Chemical Engineering Key Laboratory for Utility of Environment Friendly Composite Materials and Biomass in University of Gansu ProvinceNorthwest Minzu University(Northwest University for Nationalities)Lanzhou 730070China

Hydrazine hydrate(DH)is an important fine chemical intermediate and as fuel for rockets,however,it also has serious toxic for humans and *** novel materials and methods for sensitive detection of DH in water and air is an important *** order to effectively detect DH,a novel conductive supramolecular polymer metallogel(PQ-Ag)has been constructed by the coordination of bis-5-hydroxyquinoline functionalized pillar[5]arene(PQ5)with Ag+.The metallogel PQ-Ag could realize the multi-channel sensitive detection of DH through naked-eye,fluorescence,and electrochemical *** lowest limit of detection(LOD)is 0.1 mg/m^(3)in air and 2.68×10^(−8)mol/L in water,which is lower than the standard of the US Environmental Protection Agency(EPA)for DH of maximum allowable concentration in drinking *** importantly,an electronic device for DH detection based on the metallogel PQ-Ag was designed and prepared,which can realize conveniently and efficiently multi-channel detection and alert of DH through sound and light alarms not only in water but also in air.

关键词： Supramolecular metallogel Hydrazine hydrate sensor Sensitive detection Electronic sensing detection device

Pillar[n]arenes-based materials for detection and separation of pesticides

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Chinese Chemical Letters 2023年第4期34卷 6-15页

作者： Zhong-Di Tang Xiao-Mei Sun Ting-Ting Huang Juan Liu Bingbing Shi Hong Yao You-Ming Zhang tai-bao wei Qi Lin Key Laboratory of Eco-Functional Polymer Materials of Ministry of Education Key laboratory of Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission Gansu Provincial Biomass Function Composites Engineering Research CenterKey Laboratory for Utility of Environment-Friendly Composite Materials and Biomass in University of Gansu ProvinceCollege of Chemical EngineeringNorthwest Minzu University(Northwest University for Nationalities)Lanzhou 730000China

The effective materials and methods for detection and separation of pesticides are urgently needed because most of pesticides show very harmful influence on life and environment. As a new kind of macrocyclic host compound, pillar[n]arenes show very good performance in the detection and separation of pesticides, especially for paraquat(PQ). For the pesticide detection and separation materials, their structures determine performance. Therefore, this review summarizes the recent progress of pillar[n]arenes-based materials for detection and separation of pesticides covering single/multi-pillar[n]arenes, pillar[n]arenes-based polymers, frameworks, composites, nanomaterials, *** structure-performance relationships of these materials have been discussed according to the cavity size, the synergistic or collaboration effect, the structure of the polymer or framework, the substrate of the composites and the size of nanomaterials and so on. Based on these, we also look forward to the future and point out the possible way for improving the pesticides detection sensitivity and separation efficiency of this kind of materials.

关键词： composites separation pesticides

STUDIES ON THE SYNTHESIS AND BIOLOGICAL ACTIVITY OF 1-ARYLOXYACETYL-4-AROYLTHIOSEMICARBAZIDE DERIVATIVES

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Chinese Chemical Letters 1993年第1期4卷 5-8页

作者： Ji Chou CHEN tai bao wei Xiu Chun WANG Su You YANG Department of Chemistry Northwest Normal UniversityLanzhou730070 Department of Biology Northwest Normal UniversityLanzhou730070

A series of new 1-aryloxyacetyl-4-aroylthiosemicarbazides were synthesized by means of solid-liguid phase transfer catalysis. The promoting effects of these new compounds on wheat growth were observed.

关键词： STUDIES ON THE SYNTHESIS AND BIOLOGICAL ACTIVITY OF 1-ARYLOXYACETYL-4-AROYLTHIOSEMICARBAZIDE DERIVATIVES Chen