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
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.
