配位聚合物[Ni(cpna)(bpy)(H2O)]n的合成、晶体结构及磁性质

通过水热方法,采用H₂cpna(H₂cpna=5-(2′-carboxylphenyl))和bpy(bpy=2,2′-bipyridine)与Ni(OAc)₂·4H₂O反应,合成了一个具有二维结构的配位聚合物[Ni(cpna)(bpy)(H₂O)]_n (1),并对其结构和磁性质进行了研究。结构分析结果表明该聚合物的晶体属于单斜晶系,P2₁/c空间群。3个镍(Ⅱ)离子、3个cpna配体、3个2,2′-bpy配体和3个配位水分子形成了一个[Ni₃(cpna)₃(bpy)₃(H₂O)₃]环,这些环通过镍(Ⅱ)离子与cpna配体的配位作用形成了一个二维层状结构。层与层之间又通过π-π堆积作用形成了一个三维的配位框架。研究表明,该聚合物中相邻镍(Ⅱ)离子之间存在很弱的反铁磁相互作用。     

二维配位聚合物[Cu(anol)(μ1,3-N3)]n的合成、晶体结构及磁性

合成了一个结构新颖的二维Cu(Ⅱ)配位聚合物[Cu2(anol)2(μ1,3-N3)2]n(anol=2-氨基乙醇),通过X-射线单晶衍射确定了其晶体结构.晶体属单斜晶系,P21/n空间群,晶胞参数a=0.83806(17)nm,b=0.77355(15)nm,c=0.85349(17)nm,β=113.26(3)°.配体2-氨基乙醇以双齿模式配位,其配位原于包括醇羟基氧原子和氨基氮原子.在[Cu2(anol)2(μ1,3-N3)2]单元中,Cu(Ⅱ)离子通过2个μ1,1桥联方式配位的醇羟基氧原子相连,形成一个双核单元;单元之间以叠氮根离子EE桥联方式连接Cu(Ⅱ)离子形成二维网格状结构.变温磁化率测定结果表明,在配合物中,Cu(Ⅱ)离子之间存在反铁磁相互作用.     

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.     

配位聚合物{[Co(4,4′-bpy)(H2O)4](Fum)·4H2O}n的合成和晶体结构

The complex {[Co(4,4′-bpy)(H₂O)₄](Fum)·4H₂O}_n(where 4,4′-bpy = 4,4′-bipyridine and Fum = fumarate) was synthesized and characterized by X-ray diffraction. The complex consists of one-dimensional chains containing cobalt(Ⅱ) ions bridged by 4,4′-bpy molecules. The six-coordination of Co²⁺ is achieved by means of four water molecules. The fumarate is not coordinated to cobalt ion while it forms hydrogen bonds with coordinated and non-coordinated water molecules and extends the structure into three-dimensional hydrogen bonding network. CCDC: 190488.     

含有双螺旋链的配位聚合物[Co(dpa)prz0.5]n的合成、晶体结构及磁性质

A coordination polymer [Co(dpa)prz_0.5]_n(1) with double-helix chains has been constructed hydrothermally using H₂dpa (H₂dpa=diphenic acid), prz (prz=piperazine) and Co(NO₃)₂·6H₂O. The structure and magnetic properties of the complex were investigated. The complex crystallizes in triclinic system and P1 space group. Each Co atom is five-coordinated and takes a distorted tetragonal pyramid geometry. Two carboxylates of the H₂dpa ligands bridge four Co(Ⅱ) ions to form infinite right-handed or left-handed helical -C-O-Co- chains. The two types of helical chains are interconnected to each other through the Co(Ⅱ) centers to produce double-helix chains. The chains form a 2D sheet through the coordination interaction of prz molecules between adjacent chains. The sheets are further interlinked by hydrogen bond interactions to generate 3D coordination frameworks. Magnetic studies for complex 1 show stronger antiferromagnetic coupling between the Co(Ⅱ) ions. CCDC: 709275.     

一维链状配位聚合物[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ)，Cu(Ⅱ)]的合成及晶体结构表征

设计并合成了一个含吡啶基团的柔性配体：N，N′-Bis(3-pyridylmethyl)-1，4-benzenedimethylamine(bpb)。通过bpb与硫酸锌及硫酸铜反应得到了两个新型具有一维链状结构的配位聚合物：[M(H₂bpb)(H₂O)₄](SO₄)₂·6H₂O[M=Zn(Ⅱ) 1，Cu(Ⅱ) 2]。X-射线晶体结构测定表明，这两个     

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.     

一维链状镉配位聚合物[Cd(phen)(2，4，6-TMBA)2(H2O)]n的水热合成、晶体结构及热稳定性

在甲醇和水的混合溶剂中用2，4，6-三甲基苯甲酸(2，4，6-TMBA)、邻菲咯啉(phen)、高氯酸镉为原料采用水热法合成了一维链状配位聚合物Cd(phen)(2，4，6-DMBA)₂(H₂O)。该配合物晶体属四方晶系，空间群I4₁。晶体中镉原子与1个邻菲咯啉的2个N原子、2个2，4，6-三甲基苯甲酸酸根中的3个羧基氧原子及1个水分子中的氧原子配位，晶胞参数:a=2.042 5(7) nm，c=1.395 2(5) nm，V=5.820(3) nm³，D_c=1.454 g·cm^-3，Z=8，F(000)=2 608，GooF=1.064，R₁=0.034 8，wR₂=0.070 4。形成六配位的变形八面体结构。对晶体进行了热稳定性分析，结果表明:配合物在240.0 ℃以下稳定性好。     

配位聚合物{[Zn(CF3COO)2(C5H5ON)]·H2O}n的合成、晶体结构及表征

new coordination polymer {[Zn(CF₃COO)₂(C₅H₅ON)]·H₂O}_n was synthesized based on the reaction of zinc(Ⅱ) trifluoroacetate and 3-hydroxypyridine(C₅H₅ON) in methanol medium for the first time. The structure of the coordination polymer was confirmed by IR, ¹H NMR, elemental analysis and thermal analysis. The crystal structure of the coordination polymer was also determined by X-ray single crystal diffraction. The crystal belongs to monoclinic system with space group P2₁/m, and crystallographic data of the coordination polymer are: a= 0.863 1(4) nm, b=0.717 7(3) nm, c=1.116 4(5) nm, α=γ=90°, β=107.542(6)°, V=0.659 4(5) nm³; D_c=2.037 g·cm^-3; Z=2; F(000)=400; μ=1.969 mm^-1. Zinc(Ⅱ) atom lies at the center of an octahedron formed by the coordination of zinc atom and six O atoms which come from four different trifluoroacetate ions and two different 3-hydroxypyridine molecules where each trifluoroacetate ion and 3-hydroxypyridine are coordinated to two different zinc ions to form coordination polymer. CCDC: 253909.     

氨基酸配位聚合物[Co(L-trp)(D-trp)]n

The coordination polymer [Co(L-trp)(D-trp)]_n (where L-trp is L-tryptophan or (S)-2-Amino-3-(3-indolyl)propionic acid and D-trp is D-tryptophan or (R)-2-Amino-3-(3-indolyl)propionic acid) was prepared by hydro-thermal method. The structure and physicochemical properties were characterized by single-crystal X-ray diffraction structure determination, infrared spectroscopy, elemental analysis and cyclic vohammogram. The crystal data for the title compound: Monoclinic, P2₁/c, β=98.024(2)°, a=1.959 5(3) nm, b=0.546 45(7) nm, c=0.905 54(17) nm, Z=2, μ=0.934 mm^-1, R₁=0.063 2, wR₂=0.155 3. The crystal structure shows a two-dimensional double chain plane structure feature. The cyrstallized coordination polymer has a centrosymmetric space group. Each Co²⁺ is coordinated with a pair of racemes, and the complex is a mesomer. CCDC: 651088.     

3，3′-偶氮-二(6-羟基苯甲酸)镉和钴的配合物：[Cd(OSA)(Phen)(H2O)]n和[Co(OSA)(Phen)(H2O)]n的合成、表征及晶体结构

利用药物奥沙拉秦钠，邻菲罗啉与Cd(ClO₄)₂·6H₂O或Co(NO₃)₂·6H₂O水热反应分别得到其配合物的晶体[Cd(OSA)(Phen)(H₂O)]_n (1)(OSA=3，3′-偶氮-二(6-羟基苯甲酸))和[Co(OSA)(Phen)(H₂O)]_n (2)。单晶结构分析表明两化合物均为一维链状聚合结构，两者的晶体的空间群皆为C2/c。两化合物中，中心金属的配位几何构型均为五配位的五角双锥。3，3′-偶氮-二(6-羟基苯甲酸)通过羧基桥连金属离子形成一维链状聚合物结构。     

一维链状锰配位聚合物[Mn(4-CPOA)(2，2-bipy)(H2O)]n的合成与晶体结构(英)

A novel 1D coordination polymer of [Mn(4-CPOA)(2,2-bipy)(H₂O)]_n (4-CPOA^2-=4-carboxylphenoxyacetate) has been synthesized and characterized by elemental analysis, IR and single crystal X-ray diffraction. The crystal crystallizes in monoclinic system, the space group is C2/c, with the crystal cell parameters a=1.437 9(2) nm, b=1.323 4(2) nm, c=1.970 5(3) nm, β=104.00(3)° and V=3.638 3(10) nm³, M_r=423.28, R=0.065 9, wR=0.130 3. The Mn(Ⅱ) ion displays a distorted octahedral coordination configuration, defined by three carboxyl O atoms from different 4-CPOA^2- groups, two N atoms from the 2,2-bipyridine ligand and one water molecule. Adjacent Mn(Ⅱ) ions are linked by carboxylate groups into a chain structure with the Mn…Mn separation of 0.977 1(3) nm. The two-dimensional supramolecular network is constructed through intermolecular hydrogen bonds and π-π stacking interactions. CCDC: 224464.     

二维层状锌配合物[Zn(bibm)(glu)]n的合成、晶体结构及荧光性质

用水热法合成了1个新的锌配合物[Zn(bibm)(glu)]n(bibm=4,4′-二(苯并咪唑-1-甲基)联苯;glu=戊二酸),对它进行了红外光谱、元素分析、XRD、热重和荧光等表征,并用X-射线单晶衍射法测定了配合物的单晶结构。该配合物属单斜晶系,P21/n空间群,为二维层状结构。实验结果表明该配合物具有较好的荧光性质,是潜在的荧光光学材料。     

二维配位聚合物[Cd(C4O4)(C12N2H8)(H2O)]n的合成、晶体结构与性能研究

本文采用邻菲罗啉和方酸为配体，在水热条件下通过自组装合成了具有二维网状结构的配位聚合物[Cd(C₄O₄)(C₁₂N₂H₈)(H₂O)]_n，并应用X-光衍射技术测定了其单晶结构。结果表明：Cd原子与2个邻菲罗啉氮原子、3个方酸氧和1个水分子配位，生成了六配位扭曲八面体。方酸以少见的μ-1，2，3配位模式桥联3个中心金属离子，并进一步组装成二维网状配位聚合物。对配位聚合物的光学性能及热稳定性做了进一步的研究，实验结果表明：配位聚合物是具有良好热稳定性的强荧光材料，具有潜在的应用前景。     

一价铜配位聚合物[Cu(2-mpac)]n的合成与结构

近年来,配位聚合物由于在光学,电学,磁学,催化,分离.吸附等方面具有潜在的功能性,已成为当前最具挑战力的热点研究领域之一 [1～9].因此,进一步合成具有特定结构和功能的配合物具有非常重要的意义和价值.2-甲基吡嗪-5-羧酸(2-mpac)是一类非常好的有机配体,由于结合了吡嗪和羧基二者的配位特点,从而呈现丰富的配位模式,所以常常用来合成具有不同结构和性质的配合物 [10～15].     

4-羧基苯氧乙酸锰配位聚合物[Mn(p-CPOA)(H2O)3]n的合成与晶体结构

The coordination polymer of [Mn(p-CPOA)(H₂O)₃]_n (p-CPOA=4-carboxylphenoxyacetate) was synthesized and characterized by elemental analysis, IR， X-ray single crystal diffraction. The title complex crystallizes in mono-clinic with space group P2₁/c, a=0.699 8(1) nm, b=1.6235(3) nm, c=1.014 3(2) nm, β=99.55(3)°. V=1.136 5(4) nm³, Z=4, D_c=1.772 g·cm^-3, μ=1.193mm^-1, F(000)=620, R=0.026 8, wR=0.074 5. The manganese atom is seven-coordinate involving four oxygen atoms of different p-CPOA^2- ligands and three coordinated water, forming a distorted pentagonal bipyramindal environment. Two manganese atoms are bridged by p-CPOA^2- ligand, forming a one-dimensional zigzag chain structure along p axis. The adjacent distance of Mn…Mn atoms is 1.021 0 nm. The three-dimensional hydrogen bonding network was formed by the intermolecular hydrogen bonds. CCDC: 219358.     

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。