A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that ...A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that the structure of the complex contains fifty-two-membered macrometallacyclic rings, and the complex crystallizes in monoclinic system, space group of P2 1/c with a=0.739 8(1) nm, {b=}1.045 1(1) nm, c=1.812 4(2)nm, β=91.65(1)°, V=1.400 7(3) nm3, Z=4, D c=1.774 g/cm3, {F(000)=}744, R=0.050 5, wR=0.084 0. It is notable that the azide ion bridges two silver(Ⅰ) atoms in end-on fashion.展开更多
A new di-Schiff base ligand, 1,2-bis(3′-pyridylmethyleneamino)ethane(L), was designed and its Ag(Ⅰ) complex[Ag 2(L) 2](CF 3SO 3) 2 was synthesized. The crystal structure analysis indicates that the complex crystalli...A new di-Schiff base ligand, 1,2-bis(3′-pyridylmethyleneamino)ethane(L), was designed and its Ag(Ⅰ) complex[Ag 2(L) 2](CF 3SO 3) 2 was synthesized. The crystal structure analysis indicates that the complex crystallizes in monoclinic system, space group of C2/c with a=3.770 4(2) nm, b=0.797 90(10) nm, c=2.471 3(2) nm, β=101.840(10)°, V=7.276 5(12) nm 3, Z=8, D c=1.808 g/cm 3, \{F(000)=\}3 936, R=0.058 3, wR=0.076 6, (Δρ) max=0.657×10 3 e/nm 3,(Δρ) min=-0.562×10 3 \{e/nm 3\}. It is interesting that one L ligand coordinates to three Ag(Ⅰ) atoms using four N atoms, while another L ligand connects two Ag(Ⅰ) atoms with three of four N atoms and one N atom keeps free of coordination.展开更多
A one-dimensional (1D) Z conformation coordination polymer, [Ag(bix)(NO3)(H2O)]n was obtained by the reaction between AgNO3 and flexible ligand of 1,4-bis(imidazol-1-ylmethyl)-benzene under hydrothermal conditions. It...A one-dimensional (1D) Z conformation coordination polymer, [Ag(bix)(NO3)(H2O)]n was obtained by the reaction between AgNO3 and flexible ligand of 1,4-bis(imidazol-1-ylmethyl)-benzene under hydrothermal conditions. It crystallizes in triclinic with space group P1. The crystallographic data of the compound are: a=0.777 1(2) nm, b=1.043 4(3) nm, c=1.082 7(3) nm, α=71.403(4)°, β=80.946(5)°, γ=88.794(4)°. The 1D chainlike structure was connected by π-π interaction between phenyl rings, leading to a 2D layered network. The lattice water and the NO3- anions were involved between the layers, therefore the 2D layered structure further extended to an intricate 3D framework. CCDC: 257100.展开更多
Reaction of the oligo（phenylenevinylene） 4,4＇-bis（2,5-dimethylstyryl）biphenyl （bdb） with CF3CO2Ag in benzene gave a novel octanuclear sandwich cluster [Ags（bdb）2（C6H6）2（CF3CO2）8]·2C6H6 （1）. The clu...Reaction of the oligo（phenylenevinylene） 4,4＇-bis（2,5-dimethylstyryl）biphenyl （bdb） with CF3CO2Ag in benzene gave a novel octanuclear sandwich cluster [Ags（bdb）2（C6H6）2（CF3CO2）8]·2C6H6 （1）. The clusters are packed on each other through strong n-n interactions to form ^1D ＇brick＇ chains, between which the solvated benzene molecules are located. TG analysis showed that cluster 1 could completely liberate the guest benzene molecules at 105℃ and the coordinated benzene molecules at 180 ℃. In solid state, cluster 1 exhibits fluorescence, and the emission band is red-shifted compared with that of free ligand bdb.展开更多
The reaction of 2-nitro-（2-pyridylsulfanylmethyl）benzene L with silver nitrate produces a centrosymmetric binuclear complex bis（2-nitro-（2-pyridylsulfanylmethyl）benzene-N,S）- bis（nitrato-O,O）-disilver（Ⅰ）, [...The reaction of 2-nitro-（2-pyridylsulfanylmethyl）benzene L with silver nitrate produces a centrosymmetric binuclear complex bis（2-nitro-（2-pyridylsulfanylmethyl）benzene-N,S）- bis（nitrato-O,O）-disilver（Ⅰ）, [AgLNO3]2 1. The crystal is of triclinic, space group PI, with a = 7.383 （3）, b = 8.340（3）, c = 12..003（4） A, a = 95.069（6）, β = 93.498（5）, γ = 102.734（6）°, C24H20Ag2N6- O10S2, Mr= 832.32, V = 715.6（4） ,A^3, Z = 1, Dc = 1.931 g/cm^3, F（000） = 412,μ = 1.581 mm^-1, R= 0.0351 and wR = 0.0749 Each silver atom is tetrahedrally coordinated by two O atoms from bidentate nitrate, one S atom from a ligand and one N atom from another ligand. Furthermore, Ag- Ag interactions have been observed in the complex.展开更多
A novel Ag（1） complex AgH（Nifa）2 1 （C26H17AgF6N4O4, Mr = 671.31） was synthesized through hydrothermal reaction of Ag2SO4 and Niflumic acid （HNifa）, and characterized by single-crystal X-ray determination, IR a...A novel Ag（1） complex AgH（Nifa）2 1 （C26H17AgF6N4O4, Mr = 671.31） was synthesized through hydrothermal reaction of Ag2SO4 and Niflumic acid （HNifa）, and characterized by single-crystal X-ray determination, IR and fluorescent spectra. Crystal data for 1： monoclinic, space group C2/c, with a = 9.5446（16）, b = 12.3203（16）, c = 21.056 （3） A, β = 98.075（2）°, V= 2451.5（6） A^3, T = 293（2） K, Z = 4, D,. = 1.819 g/cm^3, F（000） = 1336,μ = 0.912 mm^-1, S = 1.001, （△ρ）min = 0.849, the final R = 0.0391 and wR = 0.1286. The local geometry around the central metal AgO） ion is linear. Two carboxylic acids of neighboring ligands sharing one hydrogen atom by two hydrogen bonds result in the formation of an infinite hydrogen-bonded chain. Solid-state fluorescence of I at room temperature shows that the maximal emission peak occurs in 439 nm.展开更多
文摘A new coordination complex, [Ag(IIMB)N 3], was prepared by self-assembly of asymmetric ligand 1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene(IIMB) with [Ag(NH 3) 2]N 3. The crystal structural analysis indicates that the structure of the complex contains fifty-two-membered macrometallacyclic rings, and the complex crystallizes in monoclinic system, space group of P2 1/c with a=0.739 8(1) nm, {b=}1.045 1(1) nm, c=1.812 4(2)nm, β=91.65(1)°, V=1.400 7(3) nm3, Z=4, D c=1.774 g/cm3, {F(000)=}744, R=0.050 5, wR=0.084 0. It is notable that the azide ion bridges two silver(Ⅰ) atoms in end-on fashion.
文摘A new di-Schiff base ligand, 1,2-bis(3′-pyridylmethyleneamino)ethane(L), was designed and its Ag(Ⅰ) complex[Ag 2(L) 2](CF 3SO 3) 2 was synthesized. The crystal structure analysis indicates that the complex crystallizes in monoclinic system, space group of C2/c with a=3.770 4(2) nm, b=0.797 90(10) nm, c=2.471 3(2) nm, β=101.840(10)°, V=7.276 5(12) nm 3, Z=8, D c=1.808 g/cm 3, \{F(000)=\}3 936, R=0.058 3, wR=0.076 6, (Δρ) max=0.657×10 3 e/nm 3,(Δρ) min=-0.562×10 3 \{e/nm 3\}. It is interesting that one L ligand coordinates to three Ag(Ⅰ) atoms using four N atoms, while another L ligand connects two Ag(Ⅰ) atoms with three of four N atoms and one N atom keeps free of coordination.
文摘A one-dimensional (1D) Z conformation coordination polymer, [Ag(bix)(NO3)(H2O)]n was obtained by the reaction between AgNO3 and flexible ligand of 1,4-bis(imidazol-1-ylmethyl)-benzene under hydrothermal conditions. It crystallizes in triclinic with space group P1. The crystallographic data of the compound are: a=0.777 1(2) nm, b=1.043 4(3) nm, c=1.082 7(3) nm, α=71.403(4)°, β=80.946(5)°, γ=88.794(4)°. The 1D chainlike structure was connected by π-π interaction between phenyl rings, leading to a 2D layered network. The lattice water and the NO3- anions were involved between the layers, therefore the 2D layered structure further extended to an intricate 3D framework. CCDC: 257100.
文摘Reaction of the oligo（phenylenevinylene） 4,4＇-bis（2,5-dimethylstyryl）biphenyl （bdb） with CF3CO2Ag in benzene gave a novel octanuclear sandwich cluster [Ags（bdb）2（C6H6）2（CF3CO2）8]·2C6H6 （1）. The clusters are packed on each other through strong n-n interactions to form ^1D ＇brick＇ chains, between which the solvated benzene molecules are located. TG analysis showed that cluster 1 could completely liberate the guest benzene molecules at 105℃ and the coordinated benzene molecules at 180 ℃. In solid state, cluster 1 exhibits fluorescence, and the emission band is red-shifted compared with that of free ligand bdb.
基金The Science Foundation of University of Science and Technology of Suzhou
文摘The reaction of 2-nitro-（2-pyridylsulfanylmethyl）benzene L with silver nitrate produces a centrosymmetric binuclear complex bis（2-nitro-（2-pyridylsulfanylmethyl）benzene-N,S）- bis（nitrato-O,O）-disilver（Ⅰ）, [AgLNO3]2 1. The crystal is of triclinic, space group PI, with a = 7.383 （3）, b = 8.340（3）, c = 12..003（4） A, a = 95.069（6）, β = 93.498（5）, γ = 102.734（6）°, C24H20Ag2N6- O10S2, Mr= 832.32, V = 715.6（4） ,A^3, Z = 1, Dc = 1.931 g/cm^3, F（000） = 412,μ = 1.581 mm^-1, R= 0.0351 and wR = 0.0749 Each silver atom is tetrahedrally coordinated by two O atoms from bidentate nitrate, one S atom from a ligand and one N atom from another ligand. Furthermore, Ag- Ag interactions have been observed in the complex.
文摘A novel Ag（1） complex AgH（Nifa）2 1 （C26H17AgF6N4O4, Mr = 671.31） was synthesized through hydrothermal reaction of Ag2SO4 and Niflumic acid （HNifa）, and characterized by single-crystal X-ray determination, IR and fluorescent spectra. Crystal data for 1： monoclinic, space group C2/c, with a = 9.5446（16）, b = 12.3203（16）, c = 21.056 （3） A, β = 98.075（2）°, V= 2451.5（6） A^3, T = 293（2） K, Z = 4, D,. = 1.819 g/cm^3, F（000） = 1336,μ = 0.912 mm^-1, S = 1.001, （△ρ）min = 0.849, the final R = 0.0391 and wR = 0.1286. The local geometry around the central metal AgO） ion is linear. Two carboxylic acids of neighboring ligands sharing one hydrogen atom by two hydrogen bonds result in the formation of an infinite hydrogen-bonded chain. Solid-state fluorescence of I at room temperature shows that the maximal emission peak occurs in 439 nm.
