A new metal-organic framework（MOF） based on metal clusters as secondary building units（SBU）,has been synthesized and structurally characterized.The reported MOF presents an interesting 8-connected self-penetrating...A new metal-organic framework（MOF） based on metal clusters as secondary building units（SBU）,has been synthesized and structurally characterized.The reported MOF presents an interesting 8-connected self-penetrating coordination network based on dinuclear cadmium cluster with a 4^（24）·5·6~3 topology. Moreover,the thermal stability and luminescence property of this compound have been investigated.展开更多
Two new compounds（1 and 2）based on indole were successfully synthesized and characterized.They display highly selective response to Fàin aqueous DMSO medium and pure DMSO with remarkable color and fluorescent c...Two new compounds（1 and 2）based on indole were successfully synthesized and characterized.They display highly selective response to Fàin aqueous DMSO medium and pure DMSO with remarkable color and fluorescent changes.Therefore,both receptors may serve as colorimetric sensors for Fàby visual detection.展开更多
A two-dimensional （2D） 3,3,3,4,5,5,6-connected ZnII coordination compound [Zns（L）2（OH）6｜∞ （L = 9,10- dioxo-9,10-dihydroanthracene-l,8-dicarboxylate） has been synthesized and characterized by IR, elemental an...A two-dimensional （2D） 3,3,3,4,5,5,6-connected ZnII coordination compound [Zns（L）2（OH）6｜∞ （L = 9,10- dioxo-9,10-dihydroanthracene-l,8-dicarboxylate） has been synthesized and characterized by IR, elemental analysis, X-ray powder diffraction and single crystal X-ray diffraction analysis. Moreover, the luminescent properties of the ligand and corresponding compound have been briefly investigated.展开更多
A new metal–organic framework {[Zn2（bpta）（bpy-ee）（H2O）2]·x solve}n（1）（H4bpta = biphenyl-2,20,6,60-tetracarboxylic acid and bpy-ee = 1,2-bis（4-pyridyl）ethylene） has been obtained under hydrothermal co...A new metal–organic framework {[Zn2（bpta）（bpy-ee）（H2O）2]·x solve}n（1）（H4bpta = biphenyl-2,20,6,60-tetracarboxylic acid and bpy-ee = 1,2-bis（4-pyridyl）ethylene） has been obtained under hydrothermal condition, and structurally characterized by single-crystal X-ray diffraction. Complex 1 reveals a threedimensional（3D） “pillar-layered” framework with non-flexible linker, in which some different structure characters can be found compared to that of some related other “pillar-layered” MOFs based on flexible pillar linkers. It demonstrates the impact of the flexibility of pillar linker on the final structure in this system. In addition, the selective CO2 adsorption performance of 1 was also investigated.展开更多
Room-temperature phosphorescence(RTP)has drawn considerable attention due to its fascinating applications.Herein,we report the achievement of multistimulus responsive RTP by utilizing the cus-tomizable donor-acceptor(...Room-temperature phosphorescence(RTP)has drawn considerable attention due to its fascinating applications.Herein,we report the achievement of multistimulus responsive RTP by utilizing the cus-tomizable donor-acceptor(D-A)metal-organic framework(MOF)platform for charge-transfer(CT)-based triplet state tuning.A succession of elec-tron-rich donors was introduced into the triazine-based electron-deficient framework(NKU-Mg-2)to give D-A MOFs(A1-A3)featuring CT-based emis-sion.Notably,donors are designed and guided by heavy atom effect(-Br)to enhance the spin-orbit coupling,thereby achieving a fine-tuning excited state,resulting in the manipulation of phosphores-cence from low temperature(A1)to room tempera-ture(A2).Moreover,enhanced RTP intensity is further achieved by facilely altering the halogen functionalization(A3).The modulated A3 simulta-neously achieves multiple stimulus responses to X-ray,temperature,and oxygen,rendering it a prom-ising candidate for novel optical sensors.This work not only achieves flexible control over the excited state but also presents a novel approach for devel-oping multistimulus responsive intelligent optical materials.展开更多
The targeted construction of donor-acceptor(D-A)materials featuring efficient photothermal(PT)conversion properties has been an attractive but challenging goal.Herein,a new series of coordination polymers(CPs)featurin...The targeted construction of donor-acceptor(D-A)materials featuring efficient photothermal(PT)conversion properties has been an attractive but challenging goal.Herein,a new series of coordination polymers(CPs)featuring different PT performances were constructed with flexible linker 1,1′-Ferrocenedicarboxylic acid(FCA)and 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine(TPT)as acceptor and donor molecules including coronene and tetrathiafulvalene(TTF).Based on the flexible configurations of FCA ligand and the directing of donor dependent D-A interactions,the structures of TF-1 to TF-3 featuring distinctive dimension were obtained based on Cd(Ⅱ)ions for investigating the PT property in configurational perspectives.A systematic investigation of the PT properties of the CPs was performed.Notably,TF-3 exhibits the finest PT conversion effect under the irradiation of560 nm laser,while TF-2 shows optimal PT conversion under 808 nm laser irradiation required for biological PT therapy,illustrating the correlation between the structural and component features of the CPs and their PT performances.Furthermore,Zn(Ⅱ)as bio-friendly ion was utilized to construct hypotoxic TF-4 that reveals similar structure to that of TF-2 for potential application.Polydimethylsiloxane(PDMS)patches doped with TF-4 exhibits considerable NIR PT conversion effect under808 nm,represented by the nearly 80℃temperature increased in 120 s for TF-4@PDMS patch(1.2 wt%)under 0.9 W cm^(-2)irradiation,the results of which herein indicate the potential of D-A CPs as versatile platform for the modulation of PT materials.展开更多
A synergistically directed assembly approach to distinctive metal-organic frameworks utilizing both donor-acceptor (D-A) interaction from aromatic systems and coordination interactions is presented.Based on such an ap...A synergistically directed assembly approach to distinctive metal-organic frameworks utilizing both donor-acceptor (D-A) interaction from aromatic systems and coordination interactions is presented.Based on such an approach,the coronene-tpt (tpt =2,4,6-tri(4-pyridyl)-1,3,5-triazine) stacks based coronene-MOF-1-4 have been successfully fabricated.Their structural discrepancies with coroneneabsent control products,1'-4',illustrate clearly the significance of coronene-tpt based D-A interactions in these architectures.All these coronene-MOFs contain varied coronene-tpt stacks as organic secondary building blocks (SBUs),which are closely interrelated with the coordination based framework structures.Moreover,porous coronene-MOF-1 and-2 exhibit high physicochemical stability and significant light hydrocarbons storage and separation performances.展开更多
A redox-active tetrazine moiety is immobilized within a metal-organic framework(MOF)aiming at targeted construction of a cathode with improved performance for lithium–oxygen batteries.A 1,2,4,5-tetrazine(Tz)functiona...A redox-active tetrazine moiety is immobilized within a metal-organic framework(MOF)aiming at targeted construction of a cathode with improved performance for lithium–oxygen batteries.A 1,2,4,5-tetrazine(Tz)functionalized ligand is used to construct a nanoporous MOF,Tz-Mg-MOF-74,in which the redox activity of the Tz moiety is retained.Combining the redox activity of Tz with the porous nature of a MOF produced a Tz-Mg-MOF-74-based cathode with significantly improved electrochemical performance.Specifically,the material has improved sustainable capacity with a lower overpotential compared with otherwise similar batteries without Tz and other reported MOF-based catalysts.The present approach productively integrates electrochemical activity derived from redox-active moieties and MOFs,and this combination opens a new avenue for the design of effective materials for energy storage and conversion.展开更多
基金supported by the National Science Foundation of China(No.51073079)the Natural Science Fund of Tianjin,China (No.10JCZDJC22100)the Fundamental Research Funds for the Central Universities
文摘A new metal-organic framework（MOF） based on metal clusters as secondary building units（SBU）,has been synthesized and structurally characterized.The reported MOF presents an interesting 8-connected self-penetrating coordination network based on dinuclear cadmium cluster with a 4^（24）·5·6~3 topology. Moreover,the thermal stability and luminescence property of this compound have been investigated.
基金the fnancial supports from NSF of China (Nos. 21031002 21202088, and 51073079)the China Postdoctoral Science Foundation (No. 2012M520570)the Fundamental Research Funds for the Central Universities
文摘Two new compounds（1 and 2）based on indole were successfully synthesized and characterized.They display highly selective response to Fàin aqueous DMSO medium and pure DMSO with remarkable color and fluorescent changes.Therefore,both receptors may serve as colorimetric sensors for Fàby visual detection.
基金supported by the key project of Science and Technology Department of Henna Province(No.112102210371)The Science and Technology Research Projects of Education Department of Henan Province(No.12B150003)
文摘A two-dimensional （2D） 3,3,3,4,5,5,6-connected ZnII coordination compound [Zns（L）2（OH）6｜∞ （L = 9,10- dioxo-9,10-dihydroanthracene-l,8-dicarboxylate） has been synthesized and characterized by IR, elemental analysis, X-ray powder diffraction and single crystal X-ray diffraction analysis. Moreover, the luminescent properties of the ligand and corresponding compound have been briefly investigated.
基金financially supported by the 973 program (Nos 2014CB845600 and 2012CB821700)NNSF of China (Nos 21531005, 21421001, and 2129017)MOE Innovation Team (No. IRT13022) of China
文摘A new metal–organic framework {[Zn2（bpta）（bpy-ee）（H2O）2]·x solve}n（1）（H4bpta = biphenyl-2,20,6,60-tetracarboxylic acid and bpy-ee = 1,2-bis（4-pyridyl）ethylene） has been obtained under hydrothermal condition, and structurally characterized by single-crystal X-ray diffraction. Complex 1 reveals a threedimensional（3D） “pillar-layered” framework with non-flexible linker, in which some different structure characters can be found compared to that of some related other “pillar-layered” MOFs based on flexible pillar linkers. It demonstrates the impact of the flexibility of pillar linker on the final structure in this system. In addition, the selective CO2 adsorption performance of 1 was also investigated.
基金supported by the National Natural Science Foundation of China(grant nos.22035003,22375104,22371134,22201143)National Key R&D Program of China(grant no.2022YFA1503301)Haihe Laboratory of Sustainable Chemical Transformations(grant no.YYJC202101).
文摘Room-temperature phosphorescence(RTP)has drawn considerable attention due to its fascinating applications.Herein,we report the achievement of multistimulus responsive RTP by utilizing the cus-tomizable donor-acceptor(D-A)metal-organic framework(MOF)platform for charge-transfer(CT)-based triplet state tuning.A succession of elec-tron-rich donors was introduced into the triazine-based electron-deficient framework(NKU-Mg-2)to give D-A MOFs(A1-A3)featuring CT-based emis-sion.Notably,donors are designed and guided by heavy atom effect(-Br)to enhance the spin-orbit coupling,thereby achieving a fine-tuning excited state,resulting in the manipulation of phosphores-cence from low temperature(A1)to room tempera-ture(A2).Moreover,enhanced RTP intensity is further achieved by facilely altering the halogen functionalization(A3).The modulated A3 simulta-neously achieves multiple stimulus responses to X-ray,temperature,and oxygen,rendering it a prom-ising candidate for novel optical sensors.This work not only achieves flexible control over the excited state but also presents a novel approach for devel-oping multistimulus responsive intelligent optical materials.
基金supported by the National Natural Science Foundation of China(22375104,22371134,and 22035003)the National Key R&D Program of China(2022YFA1503301)Haihe Laboratory of Sustainable Chemical Transformations(YYJC202101)。
文摘The targeted construction of donor-acceptor(D-A)materials featuring efficient photothermal(PT)conversion properties has been an attractive but challenging goal.Herein,a new series of coordination polymers(CPs)featuring different PT performances were constructed with flexible linker 1,1′-Ferrocenedicarboxylic acid(FCA)and 2,4,6-tri(pyridin-4-yl)-1,3,5-triazine(TPT)as acceptor and donor molecules including coronene and tetrathiafulvalene(TTF).Based on the flexible configurations of FCA ligand and the directing of donor dependent D-A interactions,the structures of TF-1 to TF-3 featuring distinctive dimension were obtained based on Cd(Ⅱ)ions for investigating the PT property in configurational perspectives.A systematic investigation of the PT properties of the CPs was performed.Notably,TF-3 exhibits the finest PT conversion effect under the irradiation of560 nm laser,while TF-2 shows optimal PT conversion under 808 nm laser irradiation required for biological PT therapy,illustrating the correlation between the structural and component features of the CPs and their PT performances.Furthermore,Zn(Ⅱ)as bio-friendly ion was utilized to construct hypotoxic TF-4 that reveals similar structure to that of TF-2 for potential application.Polydimethylsiloxane(PDMS)patches doped with TF-4 exhibits considerable NIR PT conversion effect under808 nm,represented by the nearly 80℃temperature increased in 120 s for TF-4@PDMS patch(1.2 wt%)under 0.9 W cm^(-2)irradiation,the results of which herein indicate the potential of D-A CPs as versatile platform for the modulation of PT materials.
基金This work was supported by the National Natural Science Foundation of China (Nos. 21421001, 21531005, 91856124, and 21875115)the Programme of Introducing Talents of Discipline to Universities (B18030)the General Financial Grant from the China Postdoctoral Science Foundation (No. 2017M621056).
文摘A synergistically directed assembly approach to distinctive metal-organic frameworks utilizing both donor-acceptor (D-A) interaction from aromatic systems and coordination interactions is presented.Based on such an approach,the coronene-tpt (tpt =2,4,6-tri(4-pyridyl)-1,3,5-triazine) stacks based coronene-MOF-1-4 have been successfully fabricated.Their structural discrepancies with coroneneabsent control products,1'-4',illustrate clearly the significance of coronene-tpt based D-A interactions in these architectures.All these coronene-MOFs contain varied coronene-tpt stacks as organic secondary building blocks (SBUs),which are closely interrelated with the coordination based framework structures.Moreover,porous coronene-MOF-1 and-2 exhibit high physicochemical stability and significant light hydrocarbons storage and separation performances.
基金supported by the NSFC(nos.21421001,21531005,21905142,and 21671112)the Program of Introducing Talents of Discipline to Universities(no.B18030)+1 种基金the Natural Science Fund of Tianjin(nos.19JCZDJC37200 and 19JCQNJC02600)China.The authors thank Professor Brian Space(University of South Florida,Tampa,FL)for discussion and help.
文摘A redox-active tetrazine moiety is immobilized within a metal-organic framework(MOF)aiming at targeted construction of a cathode with improved performance for lithium–oxygen batteries.A 1,2,4,5-tetrazine(Tz)functionalized ligand is used to construct a nanoporous MOF,Tz-Mg-MOF-74,in which the redox activity of the Tz moiety is retained.Combining the redox activity of Tz with the porous nature of a MOF produced a Tz-Mg-MOF-74-based cathode with significantly improved electrochemical performance.Specifically,the material has improved sustainable capacity with a lower overpotential compared with otherwise similar batteries without Tz and other reported MOF-based catalysts.The present approach productively integrates electrochemical activity derived from redox-active moieties and MOFs,and this combination opens a new avenue for the design of effective materials for energy storage and conversion.
