一个双螺旋配合物[Cd2L2(2，2′-bipy)2]n的合成、晶体结构与荧光性质

A flexible carboxylic ligand, 1,4-benzenebis(thioacetic acid) (H₂L), has been employed to assemble with Cd(Ⅱ) ions under hydrothermal conditions, generating a new complex [Cd₂L₂(2,2′-bipy)₂]_n(1). X-ray diffraction reveals the complex 1 possesses a self-assembly double helix structure deriving from [Cd₂L₂(2,2′-bipy)₂] units linked by L^2- ligands. A 3D infinite framework is constructed via π-π stacking of 2,2′-bipy. The photoluminescent properties in solid state were investigated. CCDC: 705078.     

对三氟甲基苯甲酸和2，2′-联吡啶双核铽配合物的合成、晶体结构及发光性质

A new dinuclear complex [Tb₂(BA)₆(2,2′-bipy)₂] (BA=4-(trifluoromethyl)benzoic acid, 2,2′-bipy=2,2′-bipyridine) has been synthesized. The complex was characterized by X-ray single-crystal structure analysis. The complex is a dimer with an inversion center. In the complex, two Tb3+ ions are linked by four carboxylate groups of BA ligands in bridging-bidentate coordination mode. Each Tb³⁺ ion is eight-coordinated with two nitrogen atoms from one 2,2′-bipy molecule, four oxygen atoms from four bridging-bidentate BA ligands and two oxygen atoms from one chelating-bidentate BA ligand. Intermolecular hydrogen bonds are formed in the crystal. The complex exhibits strong green fluorescence under ultraviolet light and the fluorescence spectrum consists of four lines peaking at 489, 545, 584 and 620 nm, which are corresponding to the ⁵D₄→⁷F_j (j=6～3) transitions of Tb³⁺ ion, respectively. CCDC: 727763.     

[(2,2′-bipy)2VO2](H2BO3)·3H2O的水热合成和晶体结构

A hydrothermal reaction of NaVO₃, Ce(NO₃)₃, H₃BO₃, 2,2′-bipyridine and water in a molar of 1∶2∶3∶2∶333 gives a yellow crystal [(C₁₀H₈N₂)₂VO₂](H₂BO₃)·3H₂O. It crystallizes in a triclinic with space group P1 and unit cell parameters a=0.6643(1)nm, b=1.1794(2)nm, c=1.4822(3)nm, α=101.39(3)°, β=101.59(3)°, γ=97.15(3)°, Z=2, D_c=1.542g·cm^-3, μ=0.508mm^-1, F(000)=528, R₁=0.0736, wR₂=0.1998,Goof=1.071. X-ray crystallographic study showed that the VN₄O₂ octahedron unit is distorted, in which the V1 atom is coordinated by two terminal O1 and O₂ atoms, and N1, N2, N3 and N4 atoms from two 2,2′-bipy ligands. The hydrogen bonding are observed between 2,2′-bipy and adjacent terminal oxygen atom. It is noteworthy that π-π stacking interaction between adjacent 2,2′-bipy groups plays an significant role in stabilization of the structure of crystal. CCDC: 194327.     

一维链状4-羧基苯氧乙酸桥联钴配位聚合物[Co(p-CPOA)(2，2′-bipy)(H2O)]n的合成与晶体结构

A novel coordination polymer of [Co(p-CPOA)(2，2′-bipy)(H₂O)]_n (p-CPOA^2-=4-carboxylphenoxyacetate dianion, 2,2′-bipy=2,2′-bipyridine) was synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. The title complex crystallizes in monoclinic space group C2/c, with a=1.424 4(3) nm, b=1.316 6(3) nm, c=1.947 7(4) nm, β=104.56(3)°. V=3.535 3(14) nm³, Z=8, R=0.028 5, wR=0.089 1. The cobalt(Ⅱ) ion displays a distorted octahedral coordination geometry, defined by three carboxyl oxygen atoms from different p-CPOA^2- groups, two nitrogen atoms from 2,2′-bipyridine ligand and one water molecule. The cobalt atoms are bridged by p-CPOA^2- groups, forming a one-dimensional chain structure along a axis. The adjacent Co…Co atoms distance is 0.996 8 nm. A layer supramolecular network is contrsucted by the hydrogen bonds and π-π stacking interactions. CCDC: 220039.     

一维链状铜配位聚合物[Cu(m-BDOA)(bipy)·H2O]n的合成与晶体结构

A novel coordination polymer, [Cu(m-BDOA)(bipy)·H₂O]_n (m-BDOA^2-=benzene-1,3-dioxyacetate), was synthesized and characterized by elemental analysis, IR spectra, X-ray single crystal structure analysis. Crystallographic data are as follows: orthorhombic, space group Pna2₁, a=1.606 9(3) nm, b=1.685 9(3) nm, c=0.699 7(1) nm, V=1.8955(7) nm³, Z=4, D_c=1.619 g·cm^-3, μ=1.200 mm^-1, F(000)=948，R=0.038 1, wR=0.038 6. The copper atom is five-coordinated involving two oxygen atoms of different m-BDOA^2- ligand, two nitrogen atoms of 2,2′-bipy ligand and one coordinated water, there is a distorted square pyramidal environment. Two copper atoms are bridged by m-BDOA^2- ligand, forming a one-dimensional chain along a axis. The adjacent distance of Cu…Cu atoms is 0.877 3nm. The crystal network was formed by the intermolecular hydrogen bond and π-packing interactions.     

双核镍配合物[Ni2(p-PhDTA)(2,2′-bipy)2(H2O)2]·4H2O的合成与晶体结构

A novel dinuclear complex of [Ni₂(p-PhDTA)(2,2′-bipy)₂(H₂O)₂]·4H₂O (p-PhDTA^2-=para-phenylenediamine-N,N,N′,N′-tetraacetate)has been synthesized. The complex was characterized by elemental analysis, IR spectra, thermo-analysis and X-ray diffraction. The crystal belongs to triclinic, space group P1 with a=0.976 3(7)nm, b=0.989 41(7) nm, c=1.084 29(8) nm, α=65.661 0(10)°, β=75.234 0(10)°, γ=85.616 0(10)°, Z=2, V=0.925 44(12) nm³, D_c=1.568 g·cm^-3, R₁=0.031 5, wR₂=0.081 4. In the complex, the central Ni(Ⅱ) ion is coordinated in a distorted octahedral geometry, defined by two carboxyl O atoms and one N atom from same p-PhDTA^2- group, two N atoms from 2,2′-bipyridine ligand and one water molecule. The two nickel (Ⅱ) ions are linked by p-PhDTA^2- group into a dinuclear structure and extensive hydrogen bonds link the complex into a 2D supramolecular network. CCDC: 294084.     

配合物[Mn(2,2′-bipy)(H2O)4]·(m-phth)的水热合成和晶体结构

A mononuclear manganese complex [Mn(2,2′-bipy)(H₂O)₄]·(m-phth) (2,2′-bipy=2,2′-bipyridine, m-phth=isophthalate) has been synthesized by hydrothermal methods. The crystal structure was determined by single-crystal X-ray diffraction. The crystal is of orthorhombic, space group Pnna with a=0.766 8(8) nm, b=2.050 2(2) nm, c=1.247 0(13) nm, V=1.960 4(4) nm³, Z=4, M_r=447.30, D_c=1.376 g·cm^-3, μ=0.722 mm^-1, F(000)=924, R_int=0.027 0, R=0.028 0 and wR=0.075 5. In the crystal the manganese atom is six-coordinated by two nitrogen atoms from 2,2′-bipyradine and four oxygen atoms from water molecules, completing an octahedral coordination geometry. The isophthalate molecules are included in the lattice and connected to Mn(2,2′-bipy)(H₂O)₄ by hydrogen bonding interactions to form a three-dimensional supramolecular structure. CCDC:286965.     

一维螺旋链状配位聚合物[Cu(p-BDOA)(2，2′-bipy)·H2O]n的合成与表征(英)

A new copper(Ⅱ) coordination polymer, [Cu(p-BDOA)(2，2′-bipy)·H₂O]_n ( p-BDOA^2-=benzene-1,4-dioxyacetate dianion; 2,2′-bipy=2,2′-bipyridine) has been synthesized and characterized by elemental analysis, IR, TG and single crystal X-ray diffraction. The Crystal crystallizes in orthorhombic system, the space group is P2₁2₁2₁, with the unit cell parameters a=0.698 4(1) nm, b=1.559 7(3) nm, c=1.750 6(4) nm and V=1.906 8(7) nm³, M_r=461.91, Z=4, R=0.057 5, wR=0.078 3. Each copper(Ⅱ) atom is six-coordinated and displays a distorted square pyramidal geometry with a one-capped base by one very long semicoordinate Cu-O(carboxylate) bond. Adjacent Cu(Ⅱ) ions are bridged by carboxylate groups, resulting in a one-dimensional helical chain. The adjacent Cu…Cu distance within the polymeric chain is 1.348 4 nm. Furthermore, such chains are linked through hydrogen bonds and π-π stacking interactions to form supramolecular network. CCDC: 219234.     

{[Co(4，4′-bipy)(H2O)4]·(α-Furacrylic acid)2·(H2O)}n的水热合成、晶体结构及电化学分析

A complex {[Co(4,4′-bipy)(H₂O)₄]·(α-Furacrylic acid)₂·(H₂O)}_n with α-furacrylic acid, 4,4′-bipy and cobaltous chloride hexahydrate has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic, space group P2₁/c, a=1.147 0(2) nm, b=1.099 9(2) nm, c=1.111 1(2) nm, β=97.829(3)°, V=1.388 7(5) nm³, D_c=1.429 g·cm^-3, Z=2, μ(Mo Kα)=0.682 mm^-1, F(000)=622, S=1.025, R₁=0.035 8, wR₂=0.086 1. The crystal structure shows that the cobalt(Ⅱ) ion is coordinated with two nitrogen atoms of two 4,4′-bipy molecules and four oxygen atoms from four water molecules, respectively, giving a distorted octahedral coordination geometry. Adjacent cobalt(Ⅱ) ions are bridged by 4,4′-bipy groups, resulting in a 1D chain structure. The adjacent Co(Ⅱ)-Co(Ⅱ) distance is 1.147 0 nm. The cobalt(Ⅱ) ion isn′ t coordinated with α-Furacrylic acid. The complex molecules form 2D structure through hydrogen bonds. The cyclic voltametric behavior of the complex was also investigated. CCDC: 648243.     

配合物[Cu2(m-MBA)4(2，2′-bipy)2(H2O)]·H2O的水热合成、晶体结构及电化学分析

A copper(Ⅱ) complex [Cu₂(m-MBA)₄(2，2′-bipy)₂(H₂O)]·H₂O with m-methylbenzoic acid (m-MBA), 2,2′-bipyridine (2,2′-bipy) and water molecule has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic, space group C2/c, a=2.591 8(5) nm, b=1.414 2(3) nm, c=1.790 8(4) nm, β=131.80(3)°, V=4.893 3(17) nm³, D_c=1.379 g·cm^-3, Z=4, F(000)=2 104 , Final GooF=1.034, R₁=0.065 6, wR₂=0.197 6. The crystal structure shows that two neighboring copper(Ⅱ) ions are linked together by two bridging-chelating m-methylbenzoic acid groups, one bridging water molecule, forming a cage structure and the Cu(Ⅱ)-Cu(Ⅱ) bond distance is 0.366 7 nm. Each copper(Ⅱ) ion is coordinated with two nitrogen atoms of one 2,2′-bipyridine molecule and four oxygen atoms from three m-methylbenzoic acid molecules and one water molecule, repectiveley, forming a distorted octahedral coordination geometry. The cyclic voltammetric behavior of the Complex was also investigated. CCDC: 648619.