The bis-benzimidazolium salt bis[2-（N-ethylbenzimidazoliumyl）ethyl]amine hexafluorophosphate（LH2·（PF6）2） and its N-heterocyclic carbene silver（Ⅰ） complex[L2Ag3]（PF6）3（1）have been prepared and charact...The bis-benzimidazolium salt bis[2-（N-ethylbenzimidazoliumyl）ethyl]amine hexafluorophosphate（LH2·（PF6）2） and its N-heterocyclic carbene silver（Ⅰ） complex[L2Ag3]（PF6）3（1）have been prepared and characterized.In complex 1,a trinuclear silver（Ⅰ） architecture is formed by two tridentate ligands and three silver（I） atoms,in which one 12- and two 7-membered rings are contained.In the crystal packing of 1,1D chain and 2D supramolecular layer are formed via intermolecular weak interactions,including π…π interactions and C-H…π contacts.Additionally,the fluorescence emission spectra of LH2-（PF6）2 and 1 are described.展开更多
Self-assembly of Ag（I） nitrate, 1,3-bis（4-pyridyl）propane （bpp） and phthalic acid monopotassium salt （KHphth） in CH3OH-H2O solution produced the title complex, {[Ag（bpp）]2（Hphth）（NO3）-（H2O）2}n, which w...Self-assembly of Ag（I） nitrate, 1,3-bis（4-pyridyl）propane （bpp） and phthalic acid monopotassium salt （KHphth） in CH3OH-H2O solution produced the title complex, {[Ag（bpp）]2（Hphth）（NO3）-（H2O）2}n, which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, and photoluminescent spectrum. Single-crystal X-ray analysis revealed that the complex crystallizes in a monoclinic system, space group P2dc, with a = 15.4174（5）, b = 8.6398（2）, c = 25.2466（8）A, β = 91.072（1）^o, V = 3362.34（17）A3, Z = 4, C34H37N5O9Ag2, Mr = 875.43, De = 1.729 g/cm^3, u = 1.228 mm^-1, F（000） = 1768, the final R = 0.0749 and wR = 0.1580 for 5754 reflections with I 〉 2o（I）. The Ag atom is coordinated by two N atoms from two bpp molecules in an approximately linear geometry. The Ag（I） ions are linked by the bpp molecules to form one-dimensional zigzag chains propagating along the c axis. The Hphth- and nitrate counter-ions are bridged by solvent water molecules through hydrogen bonds to generate a one-dimensional chain extending along the b axis. Electrostatic interactions between cations and anions, extensive hydrogen bonds and re-re interactions are responsible for the three-dimensional supramolecular structure. In the solid state, the compound exhibits blue photoluminescence with the maximum at 436 nm upon excitation at 344 nm.展开更多
A novel silver（I） complex [Ag（2,2ˊ-bipy）（C14H9O3）]·（C14H10O3） has been synthesized with 2-benzoylbenzoic acid as the ligand. Crystal data for the title complex： monoclinic, space group Cc, a = 27.4089...A novel silver（I） complex [Ag（2,2ˊ-bipy）（C14H9O3）]·（C14H10O3） has been synthesized with 2-benzoylbenzoic acid as the ligand. Crystal data for the title complex： monoclinic, space group Cc, a = 27.4089（13）, b = 10.2897（5）, c = 12.0024（6）A, β = 111.864（4）°, Mr = 715.49, V = 3141.5（3） A3, Dc = 1.513 g/cm^3, Z = 4, μ（Mo Kα） = 0.694 mm^-1, F（000） = 1456, the final R = 0.0473 and w R = 0.1146. In the title complex, the central Ag（I） ion is located in a triangular coordination environment. The electron transfer is quasi-reversible in the electrode reaction and it shows a strong emission peak in the range of 495-520 nm under 502 nm excitation. In addition, it displays diamagnetic property from 3 to 300 K.展开更多
The title compound, { [Ag2（bipy）2（H2O）2]·pydc·2H2O}n （bipy = 4,4＇-bipyridine, pydc = pyridine-3,5-dicarboxylate）, has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution. It ...The title compound, { [Ag2（bipy）2（H2O）2]·pydc·2H2O}n （bipy = 4,4＇-bipyridine, pydc = pyridine-3,5-dicarboxylate）, has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution. It crystallizes in the monoclinic system, space group C2/c with a = 21.419（8）, b = 7.515（3）, c = 18.070（7） A,β = 108.273（6）°, Mr = 765.27, V = 2761.9（17） A^3, Z = 4, Dc = 1.840 g/cm^3, F（000） = 1528,μ = 1.478 mm^-1, the final R = 0.0307 and wR = 0.0681. The structure determined demonstrated that the Ag（I） is three-coordinated by two nitrogen atoms from bipy and one water molecule, forming a one-dimensional coordination polymer [Ag2（bipy）2（H2O）2]n^2n＋, which is further linked to generate a two-dimensional layer structure via Ag---Ag attractions.展开更多
A silver(Ⅰ) complex has been obtained from reaction of silver salt and 4-Hpytz(4-Hpytz=3,5-di(4-pyridyl)-1,2,4-triazole) by hydrothermal method.Single crystal structure reveals that it consists of a 2D coordination p...A silver(Ⅰ) complex has been obtained from reaction of silver salt and 4-Hpytz(4-Hpytz=3,5-di(4-pyridyl)-1,2,4-triazole) by hydrothermal method.Single crystal structure reveals that it consists of a 2D coordination polymer [Ag(4-pytz)]∞(1)(4-pytz=3,5-di(4-pyridyl)-1,2,4-triazolate),which was crystallized in monoclinic crystal system and space group of P21/c,with a=0.753 64(1) nm,b=1.135 55(2) nm,c=1.291 7(2) nm,β=104.015(4)°,V=1.072 5(3) nm3,Z=4.Each Ag(Ⅰ) ion has a trigonal coordination geometry which three N atoms from two bridging pytz ligands.4-pytz shows-1 valence which lost its proton located at a triazole ring in final product.The title complex exhibits high thermal stability and decomposed at 472 ℃.Furthermore,complex 1 shows obvious luminescence with λem at 547 nm,which is ascribed to MLCT.展开更多
A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was c...A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was characterized by elemental analysis,IR and determined by using single crystal X-ray diffraction. The result shows that the complex crystallize in triclinic system,with space group P1,a=0.109 7(2) nm,b=0.111 7(2) nm,c=0.117 2(2) nm,α=73.60(3)°,β=85.03(3)°,γ=81.82(3)°,V=0.136 2(4) nm3,Z=2. The moleculars are connected by Ag…Ag and Ag…Cl interactions,resulting in a three-dimensional network.展开更多
基金supported by the National Natural Science Foundation of China(No.21172172)Tianjin Natural Science Foundation(No.11JCZDJC22000)the Program for Innovative Research Team in University of Tianjin(TD12-5038)
文摘The bis-benzimidazolium salt bis[2-（N-ethylbenzimidazoliumyl）ethyl]amine hexafluorophosphate（LH2·（PF6）2） and its N-heterocyclic carbene silver（Ⅰ） complex[L2Ag3]（PF6）3（1）have been prepared and characterized.In complex 1,a trinuclear silver（Ⅰ） architecture is formed by two tridentate ligands and three silver（I） atoms,in which one 12- and two 7-membered rings are contained.In the crystal packing of 1,1D chain and 2D supramolecular layer are formed via intermolecular weak interactions,including π…π interactions and C-H…π contacts.Additionally,the fluorescence emission spectra of LH2-（PF6）2 and 1 are described.
基金Supported by the Education Department of Jiangxi Province (No. 2007-125)the Initial Fund for Doctors from Jiangxi Normal University
文摘Self-assembly of Ag（I） nitrate, 1,3-bis（4-pyridyl）propane （bpp） and phthalic acid monopotassium salt （KHphth） in CH3OH-H2O solution produced the title complex, {[Ag（bpp）]2（Hphth）（NO3）-（H2O）2}n, which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, and photoluminescent spectrum. Single-crystal X-ray analysis revealed that the complex crystallizes in a monoclinic system, space group P2dc, with a = 15.4174（5）, b = 8.6398（2）, c = 25.2466（8）A, β = 91.072（1）^o, V = 3362.34（17）A3, Z = 4, C34H37N5O9Ag2, Mr = 875.43, De = 1.729 g/cm^3, u = 1.228 mm^-1, F（000） = 1768, the final R = 0.0749 and wR = 0.1580 for 5754 reflections with I 〉 2o（I）. The Ag atom is coordinated by two N atoms from two bpp molecules in an approximately linear geometry. The Ag（I） ions are linked by the bpp molecules to form one-dimensional zigzag chains propagating along the c axis. The Hphth- and nitrate counter-ions are bridged by solvent water molecules through hydrogen bonds to generate a one-dimensional chain extending along the b axis. Electrostatic interactions between cations and anions, extensive hydrogen bonds and re-re interactions are responsible for the three-dimensional supramolecular structure. In the solid state, the compound exhibits blue photoluminescence with the maximum at 436 nm upon excitation at 344 nm.
基金Supported by the Natural Science Foundation of Hunan Province(No.11JJ9006)Key Project of Science and Technology Plan of Hunan Province(2012FJ2002)the Construct Program of the Key Discipline in Hunan Province
文摘A novel silver（I） complex [Ag（2,2ˊ-bipy）（C14H9O3）]·（C14H10O3） has been synthesized with 2-benzoylbenzoic acid as the ligand. Crystal data for the title complex： monoclinic, space group Cc, a = 27.4089（13）, b = 10.2897（5）, c = 12.0024（6）A, β = 111.864（4）°, Mr = 715.49, V = 3141.5（3） A3, Dc = 1.513 g/cm^3, Z = 4, μ（Mo Kα） = 0.694 mm^-1, F（000） = 1456, the final R = 0.0473 and w R = 0.1146. In the title complex, the central Ag（I） ion is located in a triangular coordination environment. The electron transfer is quasi-reversible in the electrode reaction and it shows a strong emission peak in the range of 495-520 nm under 502 nm excitation. In addition, it displays diamagnetic property from 3 to 300 K.
基金the Construct Program of the Key Discipline in Hunan Province (No. 2006-180)the Key Scientific Research Project of Hunan Provincial Education Department (No. 07A023)
文摘The title compound, { [Ag2（bipy）2（H2O）2]·pydc·2H2O}n （bipy = 4,4＇-bipyridine, pydc = pyridine-3,5-dicarboxylate）, has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution. It crystallizes in the monoclinic system, space group C2/c with a = 21.419（8）, b = 7.515（3）, c = 18.070（7） A,β = 108.273（6）°, Mr = 765.27, V = 2761.9（17） A^3, Z = 4, Dc = 1.840 g/cm^3, F（000） = 1528,μ = 1.478 mm^-1, the final R = 0.0307 and wR = 0.0681. The structure determined demonstrated that the Ag（I） is three-coordinated by two nitrogen atoms from bipy and one water molecule, forming a one-dimensional coordination polymer [Ag2（bipy）2（H2O）2]n^2n＋, which is further linked to generate a two-dimensional layer structure via Ag---Ag attractions.
文摘A silver(Ⅰ) complex has been obtained from reaction of silver salt and 4-Hpytz(4-Hpytz=3,5-di(4-pyridyl)-1,2,4-triazole) by hydrothermal method.Single crystal structure reveals that it consists of a 2D coordination polymer [Ag(4-pytz)]∞(1)(4-pytz=3,5-di(4-pyridyl)-1,2,4-triazolate),which was crystallized in monoclinic crystal system and space group of P21/c,with a=0.753 64(1) nm,b=1.135 55(2) nm,c=1.291 7(2) nm,β=104.015(4)°,V=1.072 5(3) nm3,Z=4.Each Ag(Ⅰ) ion has a trigonal coordination geometry which three N atoms from two bridging pytz ligands.4-pytz shows-1 valence which lost its proton located at a triazole ring in final product.The title complex exhibits high thermal stability and decomposed at 472 ℃.Furthermore,complex 1 shows obvious luminescence with λem at 547 nm,which is ascribed to MLCT.
文摘A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was characterized by elemental analysis,IR and determined by using single crystal X-ray diffraction. The result shows that the complex crystallize in triclinic system,with space group P1,a=0.109 7(2) nm,b=0.111 7(2) nm,c=0.117 2(2) nm,α=73.60(3)°,β=85.03(3)°,γ=81.82(3)°,V=0.136 2(4) nm3,Z=2. The moleculars are connected by Ag…Ag and Ag…Cl interactions,resulting in a three-dimensional network.
