A new emissive mononuclear homoleptic Cu（Ⅰ） complex of 5-rert-butyl-3-（6-methyl-2-pyridyl）-1H-1,2,4-triazole（bmptzH）,[Cu（bmptzH）2]（ClO4）（1）,has been synthesized by treatment of[Cu（PPh_3）2（CH3CN）2]（C...A new emissive mononuclear homoleptic Cu（Ⅰ） complex of 5-rert-butyl-3-（6-methyl-2-pyridyl）-1H-1,2,4-triazole（bmptzH）,[Cu（bmptzH）2]（ClO4）（1）,has been synthesized by treatment of[Cu（PPh_3）2（CH3CN）2]（ClO4） or [Cu（CH3CN）4]（ClO4） with the bmptzH ligand.It is revealed that complex 1 displays a distorted N4 tetrahedral arrangement formed by two bmptzH chelates,in which bmptzH adopts a neutral bidentate chelating coordination mode using the N atom of the pyridyl ring and the 4-N not 2-N atom of the 1,2,4-triazolyl ring.It is shown that complex 1 is highly stable and exhibits good luminescence properties in solution and solid states at room temperature due to the introduction of a methyl group at the ortho-position of the pyridyl ring.展开更多
Recently,single-crystal-to-single-crystal conversion has been a hot topic in the field of metal-organic framework(MOF)materials,which could improve the stability and properties due to structural changes.A new Tb^(Ⅲ)-...Recently,single-crystal-to-single-crystal conversion has been a hot topic in the field of metal-organic framework(MOF)materials,which could improve the stability and properties due to structural changes.A new Tb^(Ⅲ)-based MOF([Tb_(4)(BTDI)_(3)(DMF)_(4)]_(n),JXUST-12)has been designed and synthesized by the incorporation of Tb^(Ⅲ)ions and H4BTDI ligands(5,5’-(benzo[c][1,2,5]thiadiazole-4,7-diyl)diisophthalic acid)featuring a fluorescent unit.展开更多
Color regulation of solid-state luminescence is desirable and challenging.We report herein a new 1,2,4-triazole-based bimetallic cuprous complex exhibiting blue-green-yellow tricolor luminescence conversion and therma...Color regulation of solid-state luminescence is desirable and challenging.We report herein a new 1,2,4-triazole-based bimetallic cuprous complex exhibiting blue-green-yellow tricolor luminescence conversion and thermally activated delayed fluorescence,and the origin and possible application of this tricolor luminescence conversion are also studied.It is shown that blue-green bicolor luminescence conversion is ascribed to the loss and recovery of CH_(2)Cl_(2)solvent molecules.展开更多
Using the new Schiff base ligands condensed from 2-hydroxy-1-naphthalenecarboxaldehyde and(1R,2R)/(1S,2S)-2-aminocyclohexanol(R-H_(3)L/S-H_(3)L),a pair of homochiral Cu_(6)Dy_(3) heterometallic cluster complexes[Cu_(6...Using the new Schiff base ligands condensed from 2-hydroxy-1-naphthalenecarboxaldehyde and(1R,2R)/(1S,2S)-2-aminocyclohexanol(R-H_(3)L/S-H_(3)L),a pair of homochiral Cu_(6)Dy_(3) heterometallic cluster complexes[Cu_(6)Dy_(3)(R-L)_(6)(OH)_(6)(H_(2)O)_(6)](ClO_(4))(NO_(3))_(2)·4.75H_(2)O·8.5MeOH(R-1)and[Cu_(6)Dy_(3)(S-L)_(6)(OH)_(6)(H_(2)O)_(6)](ClO_(4))(NO_(3))_(2)·5.5H_(2)O·8MeOH(S-1)were synthesized at room temperature,which exhibit an interesting topology of triangular corner-sharing cubanes.Magnetic measurements revealed that they are zero-field single-molecule magnets(SMMs),with different Ueff/k values of 19.5(0.6)K for R-1 and 21.4(0.4)K for S-1,owing to solvent magnetic effects.Meanwhile,the chiral enantiomers show proton conductivity caused by hydrogen bonding networks.Furthermore,the circular dichroism(CD)spectra of R-1 and S-1 confirmed their enantiomeric nature,and the magnetic circular dichroism(MCD)study indicated that both R-1 and S-1 have strong magneto-optical Faraday effects at room temperature,with a large|g_(max(MCD))|value of 0.58 T^(−1).展开更多
Multifunctional materials with proton conduction,circularly polarized luminescence(CPL)and a magneto-optical Faraday effect would provide a great opportunity for applications in luminescent,electrical,magneto-optical ...Multifunctional materials with proton conduction,circularly polarized luminescence(CPL)and a magneto-optical Faraday effect would provide a great opportunity for applications in luminescent,electrical,magneto-optical and optical-electronic smart devices.However,such types of multifunctional systems have rarely been reported.Herein,by introducing a chiral amine-phenol ligand,a pair of Cd(Ⅱ)-Tb(Ⅲ)enantiomers,[Cd_(2)Tb(RR/SS-H_(2)L)_(2)(H_(2)O)_(6)](ClO_(4))_(3)·2H_(2)O(R-1 and S-1)[H_(2)L=((SS/RR)-cyclohexane-1,2-diylbis(azanediyl)-bis(methylene)-bis(2-methoxyphenol))],were obtained.R-1 and S-1 feature the homochiral molecules of trinuclear Cd2Tb structures,which contain abundant H-bonds to form threedimensional(3D)supermolecular frameworks.They are chiral multifunctional materials showing strong Tb(Ⅲ)characteristic emissions,a moderate proton conductivity of 1.17×10^(-4) S cm^(-1) at 333 K and 100%RH for R-1,CPL with a luminescence dissymmetry factor value of over 10^(-3) for R-1 and S-1 and a strong magneto-optical Faraday effect,and they are the first known materials simultaneously showing CPL,proton conduction and the Faraday effect.展开更多
Luminescent metal-organic frameworks(LMOFs)have become a promising class of fluorescence sensing materials,however,the multi-responsive LMOF sensors for organic compounds are rather rare.Herein,a water stable and high...Luminescent metal-organic frameworks(LMOFs)have become a promising class of fluorescence sensing materials,however,the multi-responsive LMOF sensors for organic compounds are rather rare.Herein,a water stable and highly efficient luminescent MOF with the formula of{[Zn(BBZB)(2,6-NDC)]-solvents}n(JXUST-10,BBZB=4,7-bis(1H-benzimidazole-1-yl)-2,1,3-benzothiadiazole and 2,6-NDC=2,6-naphthalenedicarboxylate)was constructed by the incorporation of Zn2+and two organic ligands(BBZB and 2,6-NDC)featuring the conjugate system.JXUST-10 is a three-dimensional two-fold interpenetrated framework with good fluorescent proper-ty.Based on the luminescent characteristic,JXUST-10 can be used as a multi-responsive sensor for detection of three different ana-lytes including tetracycline,benzaldehyde and uric acid via different luminescent change behaviours.Remarkably,fluorescence test paper and LED light devices are used to detect analytes through the visual change of luminescence colour of JXUST-10 from blue greenish to yellow greenish under ultraviolet light(365 nm)irradiation.Furthermore,the probable sensing mechanisms for three target analytes were also discussed.展开更多
Main observation and conclusion A series of all-donor type alternating(D1-D2)monodisperse oligomers based on cyclopentadithiophene(CPDT)and 1,4-difluoro-benzene(DFB)with gradually increasing chain lengths containing 3...Main observation and conclusion A series of all-donor type alternating(D1-D2)monodisperse oligomers based on cyclopentadithiophene(CPDT)and 1,4-difluoro-benzene(DFB)with gradually increasing chain lengths containing 3 to 15 monomers were successfully synthesized via one-pot C-H direct arylation reaction.As confirmed by various structural characterizations,all these long-chain oligomers are monodispersed with defined structures.The length-dependent optical and electrochemical properties with the evolution from the shortest oligomer(01)to the longest oligomer(07)and their parent polymer P1 have been studied in details.By simply tuning the mixing ratio of discrete oligomers,the photoluminescence(PL)in a wide range of color emissions extending to near-white can be facilely modulated,ilus-trating the potential of these monodisperse conjugated oligomers for light emission application.The atom-,step-and pot-economic synthetic strategy here developed will open the door toward efficient and controllable synthesis ofπ-conjugated oligomers for accu-rate structure-property relationship study and optic&electronic device applications.展开更多
基金supported by the National Natural Science Foundation of China(Nos.21561013,21501077)the Major Program of Jiangxi Provincial Natural Science Foundation of China for Young Scholar(Nos.20143ACB21017,20161ACB21013)+1 种基金the Jiangxi Provincial Natural Science Foundation of China(Nos.20142BAB203001,20151BAB213003)the Program for Qingjiang Excellent Young Talents of Jiangxi University of Science and Technology
文摘A new emissive mononuclear homoleptic Cu（Ⅰ） complex of 5-rert-butyl-3-（6-methyl-2-pyridyl）-1H-1,2,4-triazole（bmptzH）,[Cu（bmptzH）2]（ClO4）（1）,has been synthesized by treatment of[Cu（PPh_3）2（CH3CN）2]（ClO4） or [Cu（CH3CN）4]（ClO4） with the bmptzH ligand.It is revealed that complex 1 displays a distorted N4 tetrahedral arrangement formed by two bmptzH chelates,in which bmptzH adopts a neutral bidentate chelating coordination mode using the N atom of the pyridyl ring and the 4-N not 2-N atom of the 1,2,4-triazolyl ring.It is shown that complex 1 is highly stable and exhibits good luminescence properties in solution and solid states at room temperature due to the introduction of a methyl group at the ortho-position of the pyridyl ring.
基金supported by the National Natural Science Foundation of China(22061019,21861018 and 22161019)the Natural Science Foundation of Jiangxi Province of China(20202ACBL213001 and 20182BCB22010)+2 种基金Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry(20212BCD42018)the Youth Jinggang Scholars Program in Jiangxi Province(QNJG2019053)the Two Thousand Talents Program in Jiangxi Province(jxsq2019201068).
文摘Recently,single-crystal-to-single-crystal conversion has been a hot topic in the field of metal-organic framework(MOF)materials,which could improve the stability and properties due to structural changes.A new Tb^(Ⅲ)-based MOF([Tb_(4)(BTDI)_(3)(DMF)_(4)]_(n),JXUST-12)has been designed and synthesized by the incorporation of Tb^(Ⅲ)ions and H4BTDI ligands(5,5’-(benzo[c][1,2,5]thiadiazole-4,7-diyl)diisophthalic acid)featuring a fluorescent unit.
基金supported by the National Natural Science Foundation of China(22161019,21861018,22161018,22061019,and 21761012)Jiangxi Provincial Academic and Technical Leaders of the Main Disciplines(20182BCB22010)+1 种基金the Natural Science Foundation of Jiangxi Province of China(20192ACBL20013,20192BAB203001,and 20202ACBL213001)Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry(20212BCD42018).
文摘Color regulation of solid-state luminescence is desirable and challenging.We report herein a new 1,2,4-triazole-based bimetallic cuprous complex exhibiting blue-green-yellow tricolor luminescence conversion and thermally activated delayed fluorescence,and the origin and possible application of this tricolor luminescence conversion are also studied.It is shown that blue-green bicolor luminescence conversion is ascribed to the loss and recovery of CH_(2)Cl_(2)solvent molecules.
基金the National Natural Science Foundation of China(Grant Numbers 21871274 and 22271289).
文摘Using the new Schiff base ligands condensed from 2-hydroxy-1-naphthalenecarboxaldehyde and(1R,2R)/(1S,2S)-2-aminocyclohexanol(R-H_(3)L/S-H_(3)L),a pair of homochiral Cu_(6)Dy_(3) heterometallic cluster complexes[Cu_(6)Dy_(3)(R-L)_(6)(OH)_(6)(H_(2)O)_(6)](ClO_(4))(NO_(3))_(2)·4.75H_(2)O·8.5MeOH(R-1)and[Cu_(6)Dy_(3)(S-L)_(6)(OH)_(6)(H_(2)O)_(6)](ClO_(4))(NO_(3))_(2)·5.5H_(2)O·8MeOH(S-1)were synthesized at room temperature,which exhibit an interesting topology of triangular corner-sharing cubanes.Magnetic measurements revealed that they are zero-field single-molecule magnets(SMMs),with different Ueff/k values of 19.5(0.6)K for R-1 and 21.4(0.4)K for S-1,owing to solvent magnetic effects.Meanwhile,the chiral enantiomers show proton conductivity caused by hydrogen bonding networks.Furthermore,the circular dichroism(CD)spectra of R-1 and S-1 confirmed their enantiomeric nature,and the magnetic circular dichroism(MCD)study indicated that both R-1 and S-1 have strong magneto-optical Faraday effects at room temperature,with a large|g_(max(MCD))|value of 0.58 T^(−1).
基金the NSF of China(21661005,22161002 and 21761012).
文摘Multifunctional materials with proton conduction,circularly polarized luminescence(CPL)and a magneto-optical Faraday effect would provide a great opportunity for applications in luminescent,electrical,magneto-optical and optical-electronic smart devices.However,such types of multifunctional systems have rarely been reported.Herein,by introducing a chiral amine-phenol ligand,a pair of Cd(Ⅱ)-Tb(Ⅲ)enantiomers,[Cd_(2)Tb(RR/SS-H_(2)L)_(2)(H_(2)O)_(6)](ClO_(4))_(3)·2H_(2)O(R-1 and S-1)[H_(2)L=((SS/RR)-cyclohexane-1,2-diylbis(azanediyl)-bis(methylene)-bis(2-methoxyphenol))],were obtained.R-1 and S-1 feature the homochiral molecules of trinuclear Cd2Tb structures,which contain abundant H-bonds to form threedimensional(3D)supermolecular frameworks.They are chiral multifunctional materials showing strong Tb(Ⅲ)characteristic emissions,a moderate proton conductivity of 1.17×10^(-4) S cm^(-1) at 333 K and 100%RH for R-1,CPL with a luminescence dissymmetry factor value of over 10^(-3) for R-1 and S-1 and a strong magneto-optical Faraday effect,and they are the first known materials simultaneously showing CPL,proton conduction and the Faraday effect.
基金This work was supported by the National Natural Science Foundation of China(Nos.22061019,21761012,and 21861018)the Natural Science Foundation of Jiangxi Province(No.20202ACBL213001)+3 种基金Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry(No.20212BCD42018)the Natural Science Foundation of Tianjin(No.20JCQNJCO1680)the Youth Jinggang Scholars Program in Jiangxi Province(No.QNJG2019053)the Two Thousand Talents Program in Jiangxi Province(No.jxsq2019201068).
文摘Luminescent metal-organic frameworks(LMOFs)have become a promising class of fluorescence sensing materials,however,the multi-responsive LMOF sensors for organic compounds are rather rare.Herein,a water stable and highly efficient luminescent MOF with the formula of{[Zn(BBZB)(2,6-NDC)]-solvents}n(JXUST-10,BBZB=4,7-bis(1H-benzimidazole-1-yl)-2,1,3-benzothiadiazole and 2,6-NDC=2,6-naphthalenedicarboxylate)was constructed by the incorporation of Zn2+and two organic ligands(BBZB and 2,6-NDC)featuring the conjugate system.JXUST-10 is a three-dimensional two-fold interpenetrated framework with good fluorescent proper-ty.Based on the luminescent characteristic,JXUST-10 can be used as a multi-responsive sensor for detection of three different ana-lytes including tetracycline,benzaldehyde and uric acid via different luminescent change behaviours.Remarkably,fluorescence test paper and LED light devices are used to detect analytes through the visual change of luminescence colour of JXUST-10 from blue greenish to yellow greenish under ultraviolet light(365 nm)irradiation.Furthermore,the probable sensing mechanisms for three target analytes were also discussed.
基金The National Natural Science Foundation of China(No.21374075)is appreciated for financial supports.
文摘Main observation and conclusion A series of all-donor type alternating(D1-D2)monodisperse oligomers based on cyclopentadithiophene(CPDT)and 1,4-difluoro-benzene(DFB)with gradually increasing chain lengths containing 3 to 15 monomers were successfully synthesized via one-pot C-H direct arylation reaction.As confirmed by various structural characterizations,all these long-chain oligomers are monodispersed with defined structures.The length-dependent optical and electrochemical properties with the evolution from the shortest oligomer(01)to the longest oligomer(07)and their parent polymer P1 have been studied in details.By simply tuning the mixing ratio of discrete oligomers,the photoluminescence(PL)in a wide range of color emissions extending to near-white can be facilely modulated,ilus-trating the potential of these monodisperse conjugated oligomers for light emission application.The atom-,step-and pot-economic synthetic strategy here developed will open the door toward efficient and controllable synthesis ofπ-conjugated oligomers for accu-rate structure-property relationship study and optic&electronic device applications.
