A new AgO） coordination polymer, {[Ag（1,3-BIP）（H20）][Ag（1,3- BIP）（PMA）0.5.- 4H20}n （PMA = 1,2,4,5-benzenetricarboxylic acid, 1,3-BIP = 1,3-bis（imidazole）propane）, have been synthesized and characterized b...A new AgO） coordination polymer, {[Ag（1,3-BIP）（H20）][Ag（1,3- BIP）（PMA）0.5.- 4H20}n （PMA = 1,2,4,5-benzenetricarboxylic acid, 1,3-BIP = 1,3-bis（imidazole）propane）, have been synthesized and characterized by single-crystal X-ray diffraction, powder XRD, FTIR, TGA and elemental analysis techniques. The single-crystal X-ray diffraction reveals that the title complex is formed by 1D polymeric cationic chains of [Ag（1,3-BIP）（H2O）]n^n＋ and 2D polymetric anionic layer of [Ag（1,3-BIP）（PMA）0.5]n^n-, which are further linked by intermolecular H-bonding to form a 3D supramolecular framework. In addition, the photoluminescence property of the title complex in the solid state at room temperature was also investigated.展开更多
Two silver（I）-sulfonate complexes,[Ag（NO3）（4,4＇-bipy）][Ag（HL）（4,4＇-bipy）]·2H2O（1） and[Ag（H2O）（4,4＇-bipy）][AgL（4,4＇-bipy）]·2H2O（2）,have been synthesized by in situ reaction（H2L = 2-fo...Two silver（I）-sulfonate complexes,[Ag（NO3）（4,4＇-bipy）][Ag（HL）（4,4＇-bipy）]·2H2O（1） and[Ag（H2O）（4,4＇-bipy）][AgL（4,4＇-bipy）]·2H2O（2）,have been synthesized by in situ reaction（H2L = 2-formylbenzenesulfonic acid,4,4-bipy = 4,4-bipyridine）.1 displays two parallel 1D chains expending to a 3D supramolecule by n—n interactions and O-H…O hydrogen bonds,in which the[Ag（NO3）]or[Ag（HL）]units are joined by bridging 4,4＇-bipy molecules,respectively.The interactions between the complexes and DNA were studied by means of fluorescence spectra and surface-enhanced Raman scattering（SERS） spectra.The special configuration and intercalation effects between 1 and DNA are stronger than that between 2 and DNA.展开更多
A new coordination polymer, [Ag（3,3-pybz）（3,3-Hpybz）]n （1, 3,3-Hpybz = 3-pyri- din-3-yl-benzoic acid）, has been synthesized and characterized by elemental analysis, IR spectra, PXRD, and single-crystal X-ray dif...A new coordination polymer, [Ag（3,3-pybz）（3,3-Hpybz）]n （1, 3,3-Hpybz = 3-pyri- din-3-yl-benzoic acid）, has been synthesized and characterized by elemental analysis, IR spectra, PXRD, and single-crystal X-ray diffraction. In complex 1, the Ag（1）ions are linked by the paired 3,3-pybz ligands to generate an infinite 1D loop chain, and further through π-π stacking interactions to form a 2D supramolecular architecture. Crystal data for 1： triclinic, space group P1, a = 10.2635（17）, b = 10.3041（12）, c = 10.8060（13） A, V= 1679.1（5）A3, α = 62.028（11）, β = 80.325（15）, γ = 78.738（14）°, Z = 2, C24H17AgN2O4, Mr = 505.27, Dc= 1.698 g/cm3, μ= 1.058 mm--, F（000） = 506, S = 1.012 and T = 293（2） K. The final R = 0.0293 and wR = 0.0667 for 3435 observed reflections with I〉 2a（/）, and R = 0.0350 and wR = 0.0688 for all data.展开更多
The title compound,poly[N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-triazol-4-amine sil-ver（I） tetrafluoroborate],[Ag（C9H9N5）（BF4）]n,is the result of complexing Ag cation with N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-t...The title compound,poly[N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-triazol-4-amine sil-ver（I） tetrafluoroborate],[Ag（C9H9N5）（BF4）]n,is the result of complexing Ag cation with N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-triazol-4-amine （L）,and its crystal structure was determined by single-crystal X-ray diffraction.The crystal belongs to the monoclinic system,space group C2/c with a= 18.899（6）,b=9.882（2）,c=15.472（4）,β=120.158（3）°,V=2498.5（11）3,C9H9AgBF4N5,Mr= 381.89,Dc=2.031 g/cm3,μ（MoKα）=1.659 mm-1,F（000）=1488,Z=8,the final R=0.0441 and wR=0.0619 for 1094 observed reflections （I 〉 2σ（I））.In the structure,ligand L bridges the two metal Ag（I） centers in a bidentate fashion and each metal ion coordinates with two nitrogen atoms,forming a one-dimensional rectangular chain.The neighboring chains are connected by two additional Ag-N weak interactions into a 3D framework structure.The title compound shows blue fluorescence property at room temperature.展开更多
The macrocyclic ligand,15-crown-5,was used as an ionophore for fabrication of a polyvinyl chloride（PVC） based membrane sensor for Ag（Ⅰ） cation.For construction of the Ag（Ⅰ） cation selective electrode the best ...The macrocyclic ligand,15-crown-5,was used as an ionophore for fabrication of a polyvinyl chloride（PVC） based membrane sensor for Ag（Ⅰ） cation.For construction of the Ag（Ⅰ） cation selective electrode the best response characteristics were obtained using the composition： 15-crown-5/PVC/o-nitrophenyloctylether（NPOE）/sodium tetraphenyl borate（NaTPB） in the percentage ratio of 5.6/30/60.5/3.9（w/w/w/w）.The electrochemical sensor shows a linear dynamic range 1.0 10 7–1.0 10 1mol/L and a Nernstian slope of 58.9 0.5 mV/decade with a detection limit of 8.09 10 8mol/L for Ag（Ⅰ） cation.It has a fast response time of 〈10 s and can be used for at least 8 weeks without any considerable divergences in its potential response.It was successfully used as an indicator electrode in potentiometric titration of Ag（Ⅰ）cation with I and Cl anions and also for the determination of this metal cation in radiology waste water.展开更多
Reaction of AgAc with bzdmpymtH in MeOH resulted in the title compound [Ag（bzdmpymt）]6-2MeOH （1.2MeOH）, which was structurally characterized by elemental analysis, IR, and single-crystal X-ray diffraction analysis...Reaction of AgAc with bzdmpymtH in MeOH resulted in the title compound [Ag（bzdmpymt）]6-2MeOH （1.2MeOH）, which was structurally characterized by elemental analysis, IR, and single-crystal X-ray diffraction analysis. 1.2MeOH belongs to the triclinic system, space group Pi, with a = 10.930（2）, b = 11.646（2）, c = 16.794（3）A, a = 103.97（3）, β = 97.07（3）, γ = 97.94（3）°, V = 2027.2（7） A3, Z = 1, μ = 1.629 mm^-1, Dc = 1.710 mg/m3, T = 193（2） K, CsoH86Ag6N12O2S6, Mr = 2087.25, F（000） = 1044, S = 1.034, R = 0.0355 and wR = 0.0709. In 1.2MeOH, six silver（I） atoms are held together by six bzdmpymt ligands through N and S atoms to form a water-wheel-shaped structure. Each Ag atom is coordinated by two S atoms from two bzdmpymt ligands and one N atom from the third bzdmpymt ligand, giving a trigonal planar coordination geometry. Interactions between the CH3 group of bzdmpymt ligand and one pyrimidyl nitrogen atom in an adjacent molecule afford a one-dimensional hydrogen-bonding chain running along the b axis. The luminescent property of 1.2MeOH was also investigated.展开更多
A three-coordinate Ag（I） complex, [Ag（Mepzpy）（PAr3）]BF4·H2O（1, Mepzpy = 3-methyl-1-（2-pyridyl）pyrazole, PAr3 = tri（o-tolyl）phosphine）, was synthesized from the reaction of Ag（CH3CN）4BF4, PAr3 and Me...A three-coordinate Ag（I） complex, [Ag（Mepzpy）（PAr3）]BF4·H2O（1, Mepzpy = 3-methyl-1-（2-pyridyl）pyrazole, PAr3 = tri（o-tolyl）phosphine）, was synthesized from the reaction of Ag（CH3CN）4BF4, PAr3 and Mepzpy in CH3 CN at room temperature. The compound was characterized by UV-vis, NMR and X-ray single-crystal structure analysis. It crystallizes in triclinic space group P1 with a = 10.2251（5）, b = 10.6014（5）, c = 15.7012（5） A, α = 92.963（3）, β = 92.641（3）, γ = 114.647（4）°, V = 1540.6（1）A 3, Z = 2, Mr = 676.24, Dc = 1.458 g/cm3, F（000） = 688, μ = 6.187 mm^-1, GOOF = 1.038, the final R = 0.0530 and wR = 0.1493 for 6371 observed reflections with I 〉 2σ（I）. Compound 1 is ionic. It is composed of a BF4- anion and a [Ag（Mepzpy）（PAr3）]＋ cation. The Ag（I） ion adopts a distorted trigonal pyramidal coordination geometry defined by two nitrogen atoms and a phosphorous atom. The complex emits blue luminescence with maximum peaks at 470 nm in solid state at room temperature.展开更多
A novel binuclear Ag（I） complex [Ag2（C6H6NaO）2（C6H7N3O）2]·2CH3CN （1） was synthesized by the evaporation reaction of silver nitrate and （E）-1-（pyrazin-2-yl）ethanone oxime （HL）. The complex was charac...A novel binuclear Ag（I） complex [Ag2（C6H6NaO）2（C6H7N3O）2]·2CH3CN （1） was synthesized by the evaporation reaction of silver nitrate and （E）-1-（pyrazin-2-yl）ethanone oxime （HL）. The complex was characterized by elemental analysis, IR spectrum and X-ray single-crystal diffraction analysis. It crystallizes in the monoclinic space group C2/c with a = 22.7089（3）, b = 11.5443（7）, c = 16.1468（4）/A, β = 127.7150（10）°, V= 3348.6（2） A^3, Dc = 1.675 g/cm^3, Mr = 844.42, Z = 4, F（000） = 1696.0,μ = 1.226 mm^-1, the final R =0.0250 and wR = 0.070. The coordination around the silver（I） atom is a distorted trigonal-bipyramidal geometry involving one protonated pyrazinyl oxime ligand （HL）, one deprotonated oxime ligand （L^-） and one CH3CN solvate molecule in the asymmetric unit of complex 1.展开更多
基金Supported by the National Natural Science Foundation of China(No.21373132)the Science Foundation of Shaanxi University of Technology(No.SLGKY-36)
文摘A new AgO） coordination polymer, {[Ag（1,3-BIP）（H20）][Ag（1,3- BIP）（PMA）0.5.- 4H20}n （PMA = 1,2,4,5-benzenetricarboxylic acid, 1,3-BIP = 1,3-bis（imidazole）propane）, have been synthesized and characterized by single-crystal X-ray diffraction, powder XRD, FTIR, TGA and elemental analysis techniques. The single-crystal X-ray diffraction reveals that the title complex is formed by 1D polymeric cationic chains of [Ag（1,3-BIP）（H2O）]n^n＋ and 2D polymetric anionic layer of [Ag（1,3-BIP）（PMA）0.5]n^n-, which are further linked by intermolecular H-bonding to form a 3D supramolecular framework. In addition, the photoluminescence property of the title complex in the solid state at room temperature was also investigated.
基金supported by the National Natural Science Foundation of China(No.21173197)
文摘Two silver（I）-sulfonate complexes,[Ag（NO3）（4,4＇-bipy）][Ag（HL）（4,4＇-bipy）]·2H2O（1） and[Ag（H2O）（4,4＇-bipy）][AgL（4,4＇-bipy）]·2H2O（2）,have been synthesized by in situ reaction（H2L = 2-formylbenzenesulfonic acid,4,4-bipy = 4,4-bipyridine）.1 displays two parallel 1D chains expending to a 3D supramolecule by n—n interactions and O-H…O hydrogen bonds,in which the[Ag（NO3）]or[Ag（HL）]units are joined by bridging 4,4＇-bipy molecules,respectively.The interactions between the complexes and DNA were studied by means of fluorescence spectra and surface-enhanced Raman scattering（SERS） spectra.The special configuration and intercalation effects between 1 and DNA are stronger than that between 2 and DNA.
基金Supported by the Key Scientific Research Foundation of Shaanxi Provincial Education Office of China(Nos.2010JS061 and 11JS114)Natural Scientific Research and Overall Innovation Plan Major Project of Shaanxi Provincial Education Office of China(No.2012KTCL03-16)Natural Scientific Research Foundation of Shaanxi Provincial Science and Technology Office of China(Nos.2013Jk0668 and 09JK823)
文摘A new coordination polymer, [Ag（3,3-pybz）（3,3-Hpybz）]n （1, 3,3-Hpybz = 3-pyri- din-3-yl-benzoic acid）, has been synthesized and characterized by elemental analysis, IR spectra, PXRD, and single-crystal X-ray diffraction. In complex 1, the Ag（1）ions are linked by the paired 3,3-pybz ligands to generate an infinite 1D loop chain, and further through π-π stacking interactions to form a 2D supramolecular architecture. Crystal data for 1： triclinic, space group P1, a = 10.2635（17）, b = 10.3041（12）, c = 10.8060（13） A, V= 1679.1（5）A3, α = 62.028（11）, β = 80.325（15）, γ = 78.738（14）°, Z = 2, C24H17AgN2O4, Mr = 505.27, Dc= 1.698 g/cm3, μ= 1.058 mm--, F（000） = 506, S = 1.012 and T = 293（2） K. The final R = 0.0293 and wR = 0.0667 for 3435 observed reflections with I〉 2a（/）, and R = 0.0350 and wR = 0.0688 for all data.
基金supported by the Innovation Program for College Students of Central South University (No. 081053308)Central South University Science Development Foundation (No. 09SDF06)
文摘The title compound,poly[N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-triazol-4-amine sil-ver（I） tetrafluoroborate],[Ag（C9H9N5）（BF4）]n,is the result of complexing Ag cation with N-[1-（3-pydidyl）ethylidene]-4H-1,2,4-triazol-4-amine （L）,and its crystal structure was determined by single-crystal X-ray diffraction.The crystal belongs to the monoclinic system,space group C2/c with a= 18.899（6）,b=9.882（2）,c=15.472（4）,β=120.158（3）°,V=2498.5（11）3,C9H9AgBF4N5,Mr= 381.89,Dc=2.031 g/cm3,μ（MoKα）=1.659 mm-1,F（000）=1488,Z=8,the final R=0.0441 and wR=0.0619 for 1094 observed reflections （I 〉 2σ（I））.In the structure,ligand L bridges the two metal Ag（I） centers in a bidentate fashion and each metal ion coordinates with two nitrogen atoms,forming a one-dimensional rectangular chain.The neighboring chains are connected by two additional Ag-N weak interactions into a 3D framework structure.The title compound shows blue fluorescence property at room temperature.
基金financially supported by the Research Program of Shanghai Normal University(SK201239)the Natural Science Foundation of Shanghai City of China(11ZR1426200)the Innovation Program of Shanghai Municipal Education Commission(13ZZ105)
文摘The macrocyclic ligand,15-crown-5,was used as an ionophore for fabrication of a polyvinyl chloride（PVC） based membrane sensor for Ag（Ⅰ） cation.For construction of the Ag（Ⅰ） cation selective electrode the best response characteristics were obtained using the composition： 15-crown-5/PVC/o-nitrophenyloctylether（NPOE）/sodium tetraphenyl borate（NaTPB） in the percentage ratio of 5.6/30/60.5/3.9（w/w/w/w）.The electrochemical sensor shows a linear dynamic range 1.0 10 7–1.0 10 1mol/L and a Nernstian slope of 58.9 0.5 mV/decade with a detection limit of 8.09 10 8mol/L for Ag（Ⅰ） cation.It has a fast response time of 〈10 s and can be used for at least 8 weeks without any considerable divergences in its potential response.It was successfully used as an indicator electrode in potentiometric titration of Ag（Ⅰ）cation with I and Cl anions and also for the determination of this metal cation in radiology waste water.
基金supported by the National Natural Science Foundation of China (No. 20525101, 20801038)the NSF of the Education Committee of Jiangsu Province (No. 07KJD150182) "Soochow Scholar" Program of Suzhou University
文摘Reaction of AgAc with bzdmpymtH in MeOH resulted in the title compound [Ag（bzdmpymt）]6-2MeOH （1.2MeOH）, which was structurally characterized by elemental analysis, IR, and single-crystal X-ray diffraction analysis. 1.2MeOH belongs to the triclinic system, space group Pi, with a = 10.930（2）, b = 11.646（2）, c = 16.794（3）A, a = 103.97（3）, β = 97.07（3）, γ = 97.94（3）°, V = 2027.2（7） A3, Z = 1, μ = 1.629 mm^-1, Dc = 1.710 mg/m3, T = 193（2） K, CsoH86Ag6N12O2S6, Mr = 2087.25, F（000） = 1044, S = 1.034, R = 0.0355 and wR = 0.0709. In 1.2MeOH, six silver（I） atoms are held together by six bzdmpymt ligands through N and S atoms to form a water-wheel-shaped structure. Each Ag atom is coordinated by two S atoms from two bzdmpymt ligands and one N atom from the third bzdmpymt ligand, giving a trigonal planar coordination geometry. Interactions between the CH3 group of bzdmpymt ligand and one pyrimidyl nitrogen atom in an adjacent molecule afford a one-dimensional hydrogen-bonding chain running along the b axis. The luminescent property of 1.2MeOH was also investigated.
基金supported by the National Natural Science Foundation of China(51172232)
文摘A three-coordinate Ag（I） complex, [Ag（Mepzpy）（PAr3）]BF4·H2O（1, Mepzpy = 3-methyl-1-（2-pyridyl）pyrazole, PAr3 = tri（o-tolyl）phosphine）, was synthesized from the reaction of Ag（CH3CN）4BF4, PAr3 and Mepzpy in CH3 CN at room temperature. The compound was characterized by UV-vis, NMR and X-ray single-crystal structure analysis. It crystallizes in triclinic space group P1 with a = 10.2251（5）, b = 10.6014（5）, c = 15.7012（5） A, α = 92.963（3）, β = 92.641（3）, γ = 114.647（4）°, V = 1540.6（1）A 3, Z = 2, Mr = 676.24, Dc = 1.458 g/cm3, F（000） = 688, μ = 6.187 mm^-1, GOOF = 1.038, the final R = 0.0530 and wR = 0.1493 for 6371 observed reflections with I 〉 2σ（I）. Compound 1 is ionic. It is composed of a BF4- anion and a [Ag（Mepzpy）（PAr3）]＋ cation. The Ag（I） ion adopts a distorted trigonal pyramidal coordination geometry defined by two nitrogen atoms and a phosphorous atom. The complex emits blue luminescence with maximum peaks at 470 nm in solid state at room temperature.
基金supported by the National Natural Science Foundation of China (20871099)the Natural Science Foundation of Gansu Province (0710RJZA113)
文摘A novel binuclear Ag（I） complex [Ag2（C6H6NaO）2（C6H7N3O）2]·2CH3CN （1） was synthesized by the evaporation reaction of silver nitrate and （E）-1-（pyrazin-2-yl）ethanone oxime （HL）. The complex was characterized by elemental analysis, IR spectrum and X-ray single-crystal diffraction analysis. It crystallizes in the monoclinic space group C2/c with a = 22.7089（3）, b = 11.5443（7）, c = 16.1468（4）/A, β = 127.7150（10）°, V= 3348.6（2） A^3, Dc = 1.675 g/cm^3, Mr = 844.42, Z = 4, F（000） = 1696.0,μ = 1.226 mm^-1, the final R =0.0250 and wR = 0.070. The coordination around the silver（I） atom is a distorted trigonal-bipyramidal geometry involving one protonated pyrazinyl oxime ligand （HL）, one deprotonated oxime ligand （L^-） and one CH3CN solvate molecule in the asymmetric unit of complex 1.
