聚合物[Zn(pht)(pzH)2]n的合成，晶体结构与荧光性质

A Zn(Ⅱ) coordination polymer [Zn(pht)(pzH)₂]_n (where pht^2-=dianion of o-phthalic acid, pzH=pyrazole) has been synthesized and the structure was determined by X-ray diffraction. The complex crystallizes in the monoclinic space group P2₁/c, a=0.821 39(10) nm, b=1.662 2(2) nm, c=1.156 42(14) nm, β=100.349(2)°, V=1.5532(3) nm³, Z=4. Both carboxylate groups of the phthalate dianion coordinated in a monodentate mode bridged two Zn(Ⅱ) atoms forming the structure of 1-D chain. The pyrazole ligands play two different roles: one only coordinates the metal atom and the other joins the coordination polymer into a 2-D sheet via N-H…O and C-H…O hydrogen bonds besides the coordination property. A blue photoluminescence peak at 435 nm was observed in solid state at room temperature. CCDC: 227946.     

二维网状锌(Ⅱ)配位聚合物[Zn(HIDC)(bib)0.5]n的合成、晶体结构和荧光性质

A new 2D Zn(Ⅱ) coordination polymer [Zn(HIDC)(bib)_0.5]_n(1) was obtained by the hydrothermal reaction of ZnCl₂, imidazole-4,5-dicarboxylic acid (H₃IDC), and 1,4-bis(imidazol-1-yl)-butane (bib) with 2∶2∶1 mole ratio. X-ray diffraction crystal structural analysis reveals its crystallizes in monoclinic, space group P2₁/n with a=0.943 38(16), b=1.022 48(18), c=1.393 8(2) nm, β=109.434(3)°, V=1.267 9(4) nm³,Z=4, D_c=1.648 Mg·m^-3, F(000)=636, the final R₁=0.044 1, and wR₂=0.100 3 for 1 742 observed reflections with I≥2σ(I). In 1, each Zn(Ⅱ) ion is five-coordinated with a distorted trigonal bipyramidal coordination geometry, and each μ₂-HIDC² acts as a bridge to bond two neighboring Zn(Ⅱ) ions, leading to an 1D zigzag chain architecture. The adjacent chains are further linked by bib to form an infinite 2D network structure. The fluorescence spectrum of 1 exhibits intense emission at 436 nm when excited at 380 nm in solid state at room temperature. CCDC: 748259.     

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.     

一维链状铜配位聚合物[Cu(bpb)0.5(CH3COO)2]n的合成与晶体结构

A coordination complex of [Cu(bpb)_0.5(CH₃COO)₂]_n (bpb=1,4-bis(pyridine-3-aminomethyl)benzene) has been synthesized and characterized by elemental analysis, IR spectra, TG and X-ray single crystal diffraction. The title complex crystallizes in triclinic with space group P1, a=0.771 98(15) nm, b=0.827 62(17) nm, c=1.116 0(2) nm, α=96.71(3)°, β=90.03(3)°, γ=105.39(3)°, and V=0.682 4(3) nm³, Z=2, R=0.042 4, wR=0.091 1. The title complex is composed of dicopper tetracarboxylate units. Copper(Ⅱ) atom asumes a square-pyramidal coordination geometry formed with one pyridyl N atom from bpb and four O atoms from four bridging acetate anions. Two adjacent dicopper tetracarboxylate units are linked into a 1D chain by the bpb ligands, which were further connected by inter-chain hydrogen bonds to form a 2D network structure. CCDC: 667605.     

一维链状配位聚合物[Ag(bix)(NO3)(H2O)]n的合成和晶体结构

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.     

一维链状的3-羧基苯氧乙酸铜配位聚合物[Cu(3-cpoa)(phen)(H2O)]n的合成与晶体结构

A novel coordination polymer [Cu(3-cpoa)(phen)(H₂O)]_n(3-cpoa^2-=3-carboxylphenoxyacetate, phen=1,10-phenanthroline) was synthesized and characterized by elemental analysis, IR spectra and single crystal X-ray diffraction. Crystallographic facts are as follows: monoclinic crystal system, space group P2₁/n， a=0.688 96(14) nm， b=1.652 3(3) nm， c=1.651 1(3) nm， β=95.20(3)°, V=1.871 9(6) nm³, Z=4, D_c=1.618 g·cm^-3， F(000)=932， μ=1.211 mm^-1，R=0.048 2 and wR=0.062 2. The copper atom exhibits a distorted square pyramidal coordination geometry, involving two oxygen atoms of different 3-cpoa^2- ligands, two nitrogen atoms of 1,10-phen ligand and one coordinated water molecule. The copper atoms are bridged by 3-cpoa^2- ligand, forming a one-dimensional chain along c axis. The distance of adjacent Cu…Cu is 0.916 6(4) nm. A three-dimensional network structure is constructed by the intermolecular hydrogen bond and π-stacking interactions. CCDC: 219724.     

一维链状铜配位聚合物[Cu(bpb)(PPh3)2]n·nClO4·nCH2Cl2·nH2O的合成、晶体结构与荧光性质研究

A coordination polymer of [Cu(bpb)(PPh₃)₂]_n·nClO₄·nCH₂Cl₂·nH₂O(bpb=1,4-bis(pyridine-3-aminome-thyl)benzene) has been synthesized and characterized by elemental analysis, IR, TG, PL and X-ray single crystal diffraction. The title complex crystallized in triclinic with space group P1, a=1.065 8(4) nm, b=1.542 4(6) nm, c=1.690 8(6) nm, α=80.11(10)°, β=76.00(10)°, γ=82.72(10)°, and V=2.646 5(17) nm³, Z=2, R=0.068 4. In the title complex, each Cu(Ⅰ) ion displays a distorted tetrahedron coordination configuration, defined by two N atoms from two different bpb groups, and two P atoms from PPh₃. Two adjacent Cu(Ⅰ) tetrahedron units are linked into a one-dimensional chain by the bpb ligands, which are further connected by hydrogen bonds to form a two-dimensional layer structure. Furthermore, the solid-state fluorescent property of the title complex was studied at room temperature. CCDC: 743417.     

配位聚合物[NaMn(pic)3]n的水热合成和晶体结构

A Coordination polymer [NaMn(pic)₃]_n (1) (picH=picolinic acid) has been synthesized by hydrothermal synthesis and structurally characterized by single crystal structure determination. 1 crystallizes in the orthorhombic space group Pbca, a=1.251 9(4) nm, b=1.715 8(8) nm, c=1.754 7(7) nm, V=3.769(6) nm³, M_r=444.24, D_c=1.566, F(000)=1 800, R₁=0.024 8 and wR₂=0.075 1 for I>2σ(I). According to the crystal structure, each Mn(Ⅱ) ion of 1 is six-coordinated with three oxygen and three nitrogen atoms from three pic anions to form a distorted dodecahedron. Each Na⁺ ion of 1 is penta-coordinated with two oxygen atoms from a pic anion and three oxygen atoms from three pic anions of diffrent unit to form a distorted tetragnal pyramid. The three-dimensional coordination polymer 1 is connected through Na⁺ ion. CCDC: 683029.     

二维配位聚合物[Zn(PDC)(phen)]n的合成、晶体结构及荧光性质

合成了锌(II)与3,4-吡啶二羧酸和1,10-邻菲啰啉形成的配位聚合物[Zn(PDC)(phen)]_n (1) (H₂PDC＝3,4-吡啶二羧酸, phen＝1,10-邻菲啰啉), 对其进行了元素分析、红外光谱和X射线单晶衍射表征, 测定了晶体结构. 该聚合物属单斜晶系, P2(1)/n空间群, a＝0.77136 nm, b＝1.9757(4) nm, c＝1.0680(2) nm, β＝95.36(3)°, V＝1.6205(6) nm³, Z＝4, D_c＝1.683 Mg/m³, M_r＝410.68, F(000)＝832, μ＝1.55 mm^－1, 最终偏离因子R₁＝0.0608, wR₂＝0.0967. 该化合物中Zn原子与来自两个PDC的三个羧基氧原子, 另外一个PDC的吡啶氮原子, 以及phen的两个氮原子配位, 形成的ZnN₃O₃八面体通过PDC桥联形成二维层状网络结构. 此外还研究了该聚合物的热性质和荧光性质.     

配位聚合物[Zn(PDA)(obix)]的合成、晶体结构和荧光性质

Hydrothermal reaction between 1,4-phenylenediacetic acid (H₂PDA) and Zn(NO₃)₂·6H₂O at the presence of the second ligand of 1,2-bis((1H-imidazol-1-yl) methyl)benzene (obix) yields a new 2D metal-organic coordination polymer [Zn(PDA)(obix)] (1), which has been characterized by single-crystal X-ray diffraction, elemental analysis, IR spectroscopy and thermal analysis. Complex 1 presents a two-dimensional (2D) sheet structure and displays strong luminescent emission at room temperature. CCDC: 716984.     

一维链状锌配位聚合物{[Zn(H2O)2(L)(phen)]·3H2O}n的合成、晶体结构和性能研究

合成了一种锌配位聚合物{[Zn(H₂O)₂(L)(phen)]·3H₂O}_n (1), 其中, H₂L=1-氨基-8-萘酚-3, 6-二磺酸并利用元素分析、红外、紫外、荧光、热重和X-射线单晶衍射分析进行了表征。标题配合物属正交晶系, Pnma空间群, a=1.698 90(12) nm, b=0.661 88(11) nm, c=2.480 40(14) nm, V=2.789 1(5) nm³, Z=4, M_r=634.92, D_c=1.512 g·cm^-3, R=0.058 6, wR=0.121 4。标题配合物呈现一维链状结构, 链内L²-和phen配体之间存在π-π堆积作用, 链与链之间通过氢键扩展为二维超分子网络。     

一维链状吡啶酮钙配位聚合物[Ca(μ-p-HPO)2(NO3)2]n的合成、晶体结构及热稳定性研究

A novel one-dimensional coordination polymer, [Ca(μ-p-HPO)₂(NO₃)₂]_n, (p-HPO=p-pyridone) was synthesized and characterized by the element analysis, IR, TG and X-ray single crystal diffraction. It crystallizes in the monoclinic space group C2/c with unit cell parameters: a=1.992 1(4) nm, b=0.374 96(7) nm, c=1.930 3(4) nm, β=109.21(3)°. V=1.361 6(5) nm³, Z=4, R=0.034 9, wR=0.084 4. The Ca atom is eight-coordinated by four O atoms from different p-pyridone ligands and four O atoms from two chelating nitrate anions, and displays a distorted square pyramidal coordination geometry. Each p-pyridone ligand bridges two adjacent Ca atoms, forming a infinite chain along the b direction. The Ca…Ca distance is 0.374 96(7) nm. A layer structure is further constructed by intermolecular hydrogen bonds and π-π interactions. The result of TG analysis shows that the title complex is stable under 185 ℃. CCDC: 241576.     

一维链状锌配位聚合物[Zn(4，4′-bipy)·(o-ABA)2·(H2O)2]n的合成、晶体结构及热稳定性

锌是重要的生命元素,在生物体内锌以多种形式参与代谢过程,包括糖类、脂类、蛋白质与核酸的合成与降解,对生命体系有着特殊的生物活性和催化作用[1].模拟合成以锌、铜等为中心离子的配位聚合物并对其结构进行研究,将为人们认识生命体系中与这些金属离子相关的生命现象提供重要的信息[2,3].4,4′-联吡啶是一种线状双基刚性配体,无支链,空间位阻少,有较好的桥联作用,它与金属离子在自组装过程中能形成各种一维,二维,及三维空间结构的配位聚合物[4～7].     

一维交替链状稀土配位聚合物[Er(dpa)(pya)(H2O)]n和[Nd2(pya)6(H2O)4]n的水热合成及结构表征

在水热条件下，稀土氧化物与2，2′-联苯二甲酸及异烟酸反应得到了两个新颖的一维交替链状配位聚合物[Er(dpa)(pya)(H₂O)]_n和[Nd₂(pya)₆(H₂O)₄]_n(H₂dpa=2，2′-联苯二甲酸；Hpya=异烟酸)。测定了它们的晶体结构，并进行了红外光谱和元素分析等 性质的表征。晶体结构测定表明这两个化合物同属单斜晶系，并具有相同的空间群P2₁/n， 晶体学参数分别为配合物1：a= 0.8830(3) nm，b=1.058 5(3) nm，c=2.089 1(6) nm，β=98.429(4)°，D_c=1.883g·cm^-3， V=1.931 4(10) nm³，Z=4； 配合物2：a=0.968 9(4) nm，b=1.978 3(9) nm，c=1.164 2(6) nm，β=112.106(7)°，D_c=1.756 g·cm^-3，V=2.067 5(17) nm³，Z=4。     

二维配位聚合物[Zn(PDC)(phen)]n的合成、晶体结构及荧光性质

合成了锌(II)与3,4-吡啶二羧酸和1,10-邻菲啰啉形成的配位聚合物[Zn(PDC)(phen)]_n (1) (H₂PDC＝3,4-吡啶二羧酸, phen＝1,10-邻菲啰啉), 对其进行了元素分析、红外光谱和X射线单晶衍射表征, 测定了晶体结构. 该聚合物属单斜晶系, P2(1)/n空间群, a＝0.77136 nm, b＝1.9757(4) nm, c＝1.0680(2) nm, β＝95.36(3)°, V＝1.6205(6) nm³, Z＝4, D_c＝1.683 Mg/m³, M_r＝410.68, F(000)＝832, μ＝1.55 mm^－1, 最终偏离因子R₁＝0.0608, wR₂＝0.0967. 该化合物中Zn原子与来自两个PDC的三个羧基氧原子, 另外一个PDC的吡啶氮原子, 以及phen的两个氮原子配位, 形成的ZnN₃O₃八面体通过PDC桥联形成二维层状网络结构. 此外还研究了该聚合物的热性质和荧光性质.     

一维链状镉(Ⅱ)配位聚合物[Cd(μ-DPIA)2(H2O)]n的合成与结构研究

A novel one-dimensional coordination polymer, [Cd( μ-DPIA)₂(H₂O)]_n (HDPIA=4,5-Diphenylimidazole-1-acetic acid), was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. It crystallizes in the orthogonal space group Pca2₂ with unit cell parameters: a=1.509 6(3) nm, b=0.611 1(1) nm, c=3.216 4(6) nm, and V=2.967 1(10) nm³, Z=4, R=0.032 7, wR=0.086 7. The Cd atom is seven-coordinated by four O atoms and two N atoms from two chelating DPIA^- ligands and one water molecule, and displays a distorted pentagonal bipyramid coordination geometry. Each DPIA^- ligand bridges two adjacent Cd atoms, forming a infinite chain along the a axis direction. The Cd…Cd separation within the polymer is 0.765 0(3) nm. A layer structure which parallels to the ab plane is further constructed by hydrogen bonding interactions. CCDC: 254247.     

一维链状4-硝基-3-羧甲基苯异丙酸镉配位聚合物{[Cd(3-CNPP)(Py)3]·2H2O}n的合成、晶体结构及热稳定性研究

A novel one-dimensional coordination polymer, {[Cd(3-CNPP)(Py)₃]·2H₂O}_n (3-CNPP^2-=2-(3-carboxymethyl-4-nitrophenyl)propionate dianion, Py=pyridine) was synthesized and characterized by the element analysis, IR, TG and single crystal X-ray diffraction. The title complex crystallizes in monoclinic system with space group P2₁/ n, a=0.974 81(19) nm, b=1.992 3(4) nm, c=1.459 8(3) nm, β=95.92(3)°, and V=2.820 0(10) nm³ Z=4, R=0.037 3, wR=0.083 8. Each cadmium(Ⅱ) atom is seven-coordinated by four oxygen atoms from two different 3-CNPP^2- groups and three nitrogen atoms from three pyridine ligands, forming a distorted pentagonal bipyramindal coordination geometry. The cadmium(Ⅱ) atoms are bridged by the tetradentate 3-CNPP^2- groups, constructing a one-dimensional zigzag chain structure along c axis. The adjacent distance of Cd…Cd atoms is 0.979 6 nm. The two-dimensional hydrogen-bonding supramolecular network was formed via the hydrogen bond interactions. CCDC: 254257.     

一维链状配位聚合物[Ca(L)2·(CH3OH)2]n的合成、结构及热稳定性

The coordination polymer [Ca(L)₂·(CH₃OH)₂]_n (HL=N-phenylanthranilic acid) (1) was synthesized by the reaction of calcium perchlorate with N-phenylanthranilic acid in the CH₃OH/H₂O. It was characterized by elemental analysis, IR, thermal analysis and X-ray single crystal structure analysis. The crystal of the title complex [Ca(L)₂·(CH₃OH)₂]_n belongs to triclinic, space group P1 with a=0.751 5(3) nm, b=1.079 6(4) nm, c=1.629 5(6) nm, α=83.547(5)°, β=89.001(6)°, γ=72.257(5)°, V=1.251 0(8) nm³, Z=2, D_c=1.403 Mg·m^-3, F(000)=556, and final R₁=0.066 8, wR₂=0.140 4. The complex comprises a seven-coordinated calcium(Ⅱ) center, with a O₇ distorted pengonal bipyramidal coordination environment. Adjacent Ca(Ⅱ) ions are bridged by N-phenylanthranilicate groups, resulting in a 1D chain structure. The adjacent Ca…Ca distances are 0.382 8 nm and 0.384 6 nm. Furthermore, the molecules are connected by hydrogen bonds to form two dimensional layered structure. CCDC: 652445.     

阶梯状配位聚合物[Cu(μ3-I)INH]n的合成、晶体结构及其热稳定性研究

The complex [Cu(μ₃-I)INH]_n has been synthesized in DMF solution with INH, CuI, where INH=isoniazid. The crystal structure of the complex has been determined by X-ray diffraction single crystal structure analysis. The crystal belong to monoclinic system, space group P2₁/c. The cell parameters are: a=1.009 48(10) nm, b=0.467 51(5) nm, c=1.992 62(19) nm, β=101.413 0(10)°, and V= 0.921 81(16) nm³, Z=4, μ(Mo Kα)=5.674 mm^-1, F(000)=616.0, R₁=0.031 6, wR₂=0.082 5 [I>2σ(I)]. The copper(Ⅰ) atom locates in a distorted coordination tetrahedron. The copper(Ⅰ) atoms bridged by μ₃-I to form a band stair-like chain, and INH occupying the remaining coordination site of the approximately tetrahedral. The stair-like chains extend along b axis. The results of TG analysis show the title complex was stable under 200℃. CCDC: 705346.     

一维链状配位聚合物[Cd(phen)(α-Furacrylic radical)2]n的水热合成、晶体结构及荧光分析

羧酸配合物具有丰富的拓扑结构,在磁学、光学、催化、生物等诸多领域有广泛的应用前景,人们对羧酸配合物的研究一直保持着浓厚的兴趣[1,2].