Hydrothermal Synthesis, Crystal Structure and Luminescence Properties of a New 2D Cadmium Complex Based on the 4,4'-Bis(benzimidazol-1-ylmethy1)biphenyl and Glutaric Acid Ligands

A new polymeric complex {[Cd2（bbmb）2（gt）2]＇（H2O）2}, （bbmb = 4,4＇-bis（benzimidazol-l-ylmethyl）biphenyl, H2gt = glutaric acid） has been obtained by hyclrothermal method and structurally characterized by elemental analysis, IR, XRD, TGA and single-crystal X-ray diffraction. The complex belongs to the triclinic system, space group P1 with a = 10.2417（15）, b = 13.752（2）, c = 22.201（3） A, a = 73.899（2）, β = 88.416（2）, y = 78.305（2）°, V = 2940.4（7） A3, Z = 2, C66H56Cd2N808, Mr = 1313.99, Dc = 1.484 g/cm3, F（000） = 1336 and μ = 0.787 mm-1, and features a 2D network. In the solid state at room temperature, the cadmium（Ⅱ） complex exhibits strong fluorescence absorption at 435 nm （λmax）.

Syntheses and Crystal Structures of Two Coordination Polymers of Cobalt and Cadmium Assembled by 4,4ˊ-(Ethane-1,2-diyldioxy)dibenzoic Acid

Two new metal-organic coordination polymers [Co0.5（Heoba）（bib）0.5]2n（1） and [Cd（eoba）（phen）]n（2）（H2eoba = 4,4-（ethane-1,2-diyldioxy）dibenzoic acid, bib = 1,4-bis（imidazol-1-yl）-butane, phen = 1,10-phenanthroline） have been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. Complex 1 is a 2D network structure, and complex 2 exhibits a 3D network structure. Moreover, the luminescent property of complex 2 has been investigated in the solid state.

Hydrothermal Syntheses and Crystal Structures of Two Complexes with Cyclic Dimer and 2D Network Structures of 3-Nitrophthalate and N-Donor Ligand

Two complexes, [Cd（nphth）（2,2＇-bipy）（H20）]2.2H20 （1） and [Cd（nphth）（4,4＇- bipy）（H20）], （2） （nphth = 3-nitrophthalate, 2,2＇-bipy = 2,2＇-bipyridine, 4,4＇-bipy = 4,4＇-bipyridine）, were synthesized by hydrothermal reactions and structurally characterized. Complex 1 crystallizes in triclinic with space group Pi, a = 0.7599（4）, b = 1.0551（6）, c = 1.2448（6） nm, α = 88.96（2）, β = 75.40（2）, γ= 76.76（2）°, V= 0.9393（9） nm3, Z = 1, Dc = 1.816 Mg/m3, F（000） = 512, μ = 1.217 mm-1, S = 0.946, the final R = 0.0238 and wR = 0.0631, Complex 2 crystallizes in monoclinic, space group P21/c, a = 0.737（5）, b = 2.338（1）, c = 1.0030（6） nm, β = 96：359（9）°, V= 1.803（2） nm3, Z = 4, Dc = 1.826 Mg/m3, F （000） = 984,μ = 1.260 mm-1, S = 1.016, the final R = 0.0455 and wR = 0.1007. Complex 1 exhibits a discrete cyclic binuclear structure and complex 2 possesses a 2D layer structure with cyclic binuclear unit. The fluorescent spectrum study shows that complex 1 exhibits fluorescent emission in the solid state at room temperature.

Hydrothermal Synthesis, Crystal Structure and Fluorescent Property of a Cd(Ⅱ) Complex Based on Biimidazole and Isonicotinate-N-oxide

A new complex [Cd（H2biim）2（H2O）2]·（ino）2·4H2O （H2biim = 2,2＇-biimidazole, ino = isonicotinate-N-oxide） has been prepared and characterized by single-crystal X-ray diffraction analysis, IR and fluorescence spectra analysis. The crystal is of triclinic system, space group P1 with a = 7.5380（6）, b = 8.0402（7）, c = 13.5094（11） , α = 104.269（1）, β = 93.604（1）, γ = 98.349（1）°, V = 780.93（11） 3, Mr = 765.00, Dc = 1.627 g/cm3, F（000） = 390, μ = 0.776 mm-1 and Z = 1. The final R = 0.0322 and wR = 0.0825 for 7038 observed reflections with I 2σ（I） and R = 0.0341 and wR = 0.0832 for all data. The title complex exhibits an infinite chain-like structure through bridging isonicotinate-N-oxide. Strong interchain hydrogen bonds between isonicotinate-N-oxide and H2biim result in the robust 3-D supramolecular architecture. Moreover, the complex shows strong photoluminescence with emission maximum at λ = 401 nm upon λex = 330 nm.

Hydrothermal Synthesis and Crystal Structure of a Novel Selenite-chloride:[Cd_4(SeO_3)_2Cl_4(H_2O)]_n with a Three-dimensional Framework

A novel three-dimensional（3-D） compound [Cd4（SeO3）2Cl4（H2O）]n（1） was prepared from a hydrothermal reaction and structurally characterized.Compound 1 crystallizes in the space group Fmmm of the orthorhombic system with eight formula units in a cell：a = 15.5165（4）,b = 17.5090（9）,c = 7.3318（5） ,V = 1991.9（2） 3,Cd4Cl4H2O7Se2,Mr = 863.38,Dc = 5.758 g/cm3,S = 1.075,μ（MoKα） = 16.820 mm-1,F（000） = 3088,R = 0.0427 and wR = 0.1220.Compound 1 features a 3-D structure with the cadmium atoms having two different coordination environments,i.e.,six-and eight-coordination geometries.Two different chain-like structures of cadmium-oxo polyhedra are interconnect to each other to give a 2-D layer of [Cd4（SeO3）2（H2O）]n4n＋.Between the [Cd4（SeO3）2（H2O）]n4n＋ layers is a novel chloride layer.A 3-D framework is constructed from these [Cd4（SeO3）2（H2O）]n4n＋ layers linked by the chloride layers.

Synthesis,Crystal Structure and Physical Properties of a Novel Cadmium(Ⅱ) Supramolecular 3D Framework

A new inorganic-organic hybrid cadmium（Ⅱ） complex [Cd2（H1/2C4BIm）2（CH3COO）]nhas been prepared by a hydrothermal reaction,and characterized by fluorescence,IR,TGA,and single-crystal X-ray diffraction analysis.In its crystal structure,there are two kinds of coordinating forms for those Cd（Ⅱ） ions.One is that the Cd（Ⅱ） ion is coordinated by one carboxylate oxygen atom from one acetate oxygen ligand and three benzimidazole nitrogen atoms from three 2,2’-（1,4-butanediyl）bis（1H-benzimidazole）（H2C4BIm） ligands,and the other is that the Cd（Ⅱ） ion is coordinated by four benzimidazole nitrogen atoms from four H2C4 BIm ligands to furnish two distorted tetrahedral coordination geometries.It exhibits a beautiful structure for a 2D layer and a 3D network,with its four-connecting nodes provided by the H2C4 BIm ligands.Furthermore,this complex shows intense luminescent property at room temperature.In [Cd2（H2C2BIm）2（C9H6O4）2]n,the H2C2 BIm ligand lost the role as a bridging ligand because of the shorter alkyl chain compared with that of H2C4 BIm ligand.

Two New Coordination Polymers Assembled with a Functionalized Ligand:Syntheses and Crystal Structures

Two new transition-metal organic coordination polymers [M（mna）2]（M = Cd（1）,Zn（2）;mna = 2-mercaptonicotinic anion） have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction along with IR and elemental analyses.Compound 1 is generally a one-dimensional linear structure bridged through the sulfur donor of mna ligand,while 2 is a one-dimensional zigzag chain ligated via the oxygen donor of mna ligand.These compounds further result in three-dimensional structures via intermolecular π...π stacking interactions and/or hydrogen bonding interactions.The two compounds were structurally determined by single-crystal X-ray diffraction.Complex 1 crystallizes in monoclinic space group P21/c with a = 3.730（3）,b = 13.973（12）,c = 12.380（11） ,β = 97.953（18）°,V = 639.0（10） 3,Z = 2,CdC12H8O4N2S2,Mr = 420.72,Dc = 2.187 g/cm3,F（000） = 412,Rint = 0.0252,T = 293（2） K,μ = 2.052 mm？1,the final R = 0.0269 and wR = 0.0586 for 1377 observed reflections with I 2σ（I）.Complex 2 belongs to monoclinic space group P21/c with a = 13.376（2）,b = 12.8429（14）,c = 7.4856（10） ,β = 96.190（10）°,V = 1278.5（3） 3,Z = 4,ZnC12H8O4N2S2,Mr = 373.69,Dc = 1.941 g/cm3,F（000） = 752,Rint = 0.0414,T = 293（2） K,μ = 2.264 mm？1,the final R = 0.0418 and wR = 0.0966 for 2396 observed reflections with I 2σ（I）.

Synthesis,Structure and Luminescence of a Novel 2D Cadmium Coordination Polymer with a Ligand Generated in situ

The hydrothermal reaction of 1,2-dicyanobenzene with NaN3 in the presence of Cd（NO3）2 affords a novel 2D cadmium tetrazolyl-benzoate, {Cd（tzbz）（H2O）}n （H2tzbz is 2-（5-tetrazolyl）-benzoate）. The tzbz ligand is generated in situ through the [2＋3] Sharpless cycloaddition reaction and hydrolyzation. Its crystal structure was determined by single-crystal X-ray diffraction method. The crystal crystallizes in the orthorhombic system, space group Pbca with a = 9.6659（19）, b = 7.6366（15）, c = 25.964（5）A, V= 1916.5（7）A^3, Z= 8, Mr = 318.57, Dc = 2.208 g/cm^3, F（000） = 1232 and p = 2.276 mm^-1. The Cd（Ⅱ） atom is coordinated by four tzbz ligands and one water molecule to form a severely distorted pentangle bipyramid. While each tzbz ligand connects to four Cd（Ⅱ） atoms in a μ4-η1, η, η1, η1, η1 coordination mode to construct a 2D architecture of the title complex. Additionally, the title complex exhibits strong fluorescence at room temperature in the solid state.

Hydrothermal Synthesis and Characterization of a One-Dimensional Copper(I) Halide Cluster with 1,10-Phenanthroline

The title compound Cu 2Cl 2phen (phen=1,10 phenanthroline, C 12 H 8N 2) 1 was synthesized from CuCl 2·2H 2O, CuCl and phen by hydrothermal method and its structure was determined by single crystal X ray analysis. With phen, CuCl forms one dimensional chains, which comprise two zigzag chains based on fused Cu X units and connected via covalent bonds. The compound contains two crystallographically unique monovalent copper ions, Cu(1) and Cu(2). The Cu(1) atom in the tetrahedral site, is coordinated to two bridging Cl - and two N atoms in phen. The Cu(2) atom with a slightly distorted triangular planar geometry, is coordinated to three Cl -. The compound 1 was crystallized in monoclinic, space group P 2 1/ n with a = 0.37338(4) , b =1.9510(2), c =1.68008(19) nm, β =95.605(3)°, R =0.0458, and was characterized by elemental analysis, IR spectrum and TGA analysis.

Synthesis and Crystal Structur of (4,4′-H_2bipy)[CdBr_4]·H_2O

The title compound （4,4＇-H2bipy）[CdBr4]·H2O 1 has been synthesized via hydrothermal reaction and characterized by X-ray diffraction. The crystal belongs to monoclinic, space group P21/1c with a = 8.260（3）, b = 23.926（7）, c = 9.774（2） A, β = 106.777（9）°, C10H12Br4CdN2O, M, = 608.26, V = 1849.4（9） A^3, Z = 4, Dc = 2.185 g/cm^3, S = 1.005, μ（MoKα） = 9.814 mm^-1, F（000） = 1128, R = 0.0646 and ωR = 0.0989. The crystal structure analysis of 1 reveals that the title compound features an isolated structure, based on discrete 4,4＇-H2bipy moieties and lattice water molecules which are linked by hydrogen bonds together with tetrahedral cadmium atoms terminally coordinated by four bromine atoms.

一例吡嗪羧酸镉配合物的合成、结构及荧光性质研究

吡嗪化合物因其独特的结构及活性被广泛应用于制药、医学、化学等领域。水热法以水作为溶剂,具有绿色无污染、简单易操作等特点,是合成配合物的首选方法。本文以2,6-双(2-吡嗪基)吡啶-4-对苯甲酸(Hbppc)和CdCl_(2)·2.5H_(2)O为原料,用水热合成法合成了一例新型的配位化合物[Cd(bppc)(H_(2)O)Cl]_(n),并运用单晶X射线衍射、红外光谱和拉曼光谱分析等手段对配合物的结构进行了表征,结果表明此配合物为一维链状结构。对自由配体2,6-双(2-吡嗪基)吡啶-4-对苯甲酸及配合物[Cd(bppc)(H_(2)O)Cl]_(n)进行荧光分析,结果表明所得配合物具有较好的荧光性质。

一个新的镉卤化合物[Cd(phen)Cl_2]的水热合成和晶体结构

利用中温水热技术合成了一种未见报道的三维超分子化合物[Cd(phen)Cl2],并测定了其晶体结构.结果表明该化合物属于单斜晶系:C2/c空间群;晶胞参数a=16.949(3)nm,b=10.544(2)nm,c=7.226 6(14)nm,α=90°,β=110.66(3)°,γ=90°,V=1 208.4(4)nm3,Z=4,R1=0.034 1,wR2=0.083 9.

两个由双咪唑基配体构筑的锰、镉配合物的合成及晶体结构(英文)

通过水热法合成了2个金属-有机配位聚合物[Mn(dipha)(1,3-bix)]n·nH2O(1)和[Cd2(NIPH)2(bimb)2.5(H2O)]n·3nH2O(2)(H2dipha=2,2′-联苯二甲酸,1,3-bix=1,3-双(咪唑基-1-甲基)-苯,H2NIPH=5-硝基间苯二甲酸,bimb=1,4-双(咪唑基-1-甲基)-丁烷)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这2个配合物通过氢键和π-π相互作用形成了超分子网状结构。此外还研究了配合物2的荧光性质。

邻-(4-甲基苯甲酰基)-苯甲酸双核镉(Ⅱ)配合物的水热合成、晶体结构及热稳定性

羧酸因其具有多样的配位方式、羧基氧原子易参与形成氢键以及本身能减缓抗衡离子效应的负电性而被广泛应用于配合物的合成中。目前，研究主要集中于苯甲酸及其衍生物构筑的配合物．而其中以吸电子基团取代的衍生物为配体建构的配合物多集中于卤素、硝基、氰基等。邻-（4-甲基苯甲酰基）．苯甲酸中既含有羧基又含有甲酰基，是一个具有多配位点的配体．它可以作为端基配体或桥连配体与过渡金属离子进行配位．

三维网状配位聚合物｛[Cd2(phen)2(H2O)2(C6H5NO2)2]·(ClO4)｝n的水热合成、晶体结构及荧光性质

以异烟酸和邻菲咯啉(phen)为原料,采用水热合成方法,合成了一个新的配位聚合物{[Cd2(phen)2(H2O)2(C6H5NO2)2].(ClO4)}n,测定了其晶体结构。结果表明:该配合物晶体属单斜晶系,空间群P21/n。与中心镉!离子配位的3个氧原子分别来自2个异烟酸根和1个水分子,3个氮原子分别来自1个异烟酸根和1个邻菲咯啉,形成六配位变形八面体结构。由于异烟酸的桥联作用及氢键作用,配合物堆积成三维网状结构;同时配合物通过异烟酸的羧基双齿桥联配位以及邻菲咯啉和水分子作为端基配位,形成了双核笼状结构,其Cd!…Cd!距离为0.8798 nm。此外,还研究了该聚合物的荧光性质。

Zn(dpq)_2Cl_2(dpq=二-吡啶-(3,2-d:2′,3-′f)-二氮萘)的水热合成、晶体结构和荧光性质

利用中温水热方法合成了一种未见报道的三维超分子化合物Zn(dpq)2Cl2(dpq=二-吡啶-(3,2-d:2′,3-′f)-二氮萘).采用元素分析、红外光谱、单晶X射线衍射对化合物的结构进行了表征.结果表明:该化合物属于单斜晶系,C2/c空间群;晶胞参数a=0.842 51(6)nm,b=1.245 62(6)nm,c=2.260 93(11)nm,Z=4,V=2.364 8(2)nm3,R=0.029 4,wR=0.082 9.该固态化合物在室温下表现出绿色的荧光性质.

配合物｛CdI(phen)(H_2O)[C_8H_(11)O_2(COO)]｝·H_2O的水热合成、晶体结构及电化学性质

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。近年来，我们也合成了一些新的羧酸配合物．并对其性质进行了分析嗍。但我们使用较多的配体主要是刚性芳香羧酸配体。而对于柔性环状饱和羧酸配体体系我们研究不多。且文献报道也很少。

锌、镉配位聚合物的合成、晶体结构及荧光性质（英文）

通过水热法合成了2个金属-有机配位聚合物[Zn(boba)(bix)]n(1)和[Cd(L1)(L2)]2n·nH2O(2)(H2boba=4,4′-(丁烷-1,2-二氧基)-二苯甲酸,bix=1,4-双(咪唑基-1-基)苯,H2L1=4-(羧基甲氧基)苯甲酸,L2=2-(4-羟基)-1H-咪唑并[4,5-f][1,10]菲咯啉)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。配合物1为二维网状结构,配合物2为一维双链结构。此外,还研究了它们的荧光性质。

两个由2-(4′-氯-苯甲酰基)苯甲酸和双咪唑基配体构筑的锰、镉配合物的合成及晶体结构(英文)

通过水热法合成了2个配位聚合物[Mn(cbba)2(bimb)]n(1)和[Cd(cbba)2(mbix)]2n(2)(Hcbba=2-(4′-氯-苯甲酰基)苯甲酸,bimb=1,4-双(咪唑基-1-基)丁烷,mbix=1,3-双(咪唑基-1-基)苯)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这两个配合物通过氢键或π-π相互作用形成了三维超分子网状结构。此外,还研究了配合物1的紫外光谱和配合物2的荧光性质。

4′-羟基联苯-4-甲酸、1,3-二吡啶基丙烷构筑的一维镉配位聚合物的晶体结构和荧光性质(英文)

水热条件下采用Cd(NO3)2·4(H2O),4′-羟基联苯-4-甲酸和1,3-二吡啶基丙烷作为反应物合成出一个新的一维镉配位聚合物{[Cd(4′,4-Hhbc)2(bpp)2]}n(1)(4′,4-H2hbc=4′-羟基联苯-4-甲酸,bpp=1,3-二吡啶基丙烷),并分别用元素分析、红外光谱、差热分析、X-射线粉末衍射、紫外吸收光谱和X-射线单晶衍射等表征了该结构。晶体结构分析结果表明:μ2桥联的1,3-二吡啶基丙烷将镉金属离子连接成一维链结构。荧光分析表明常温固态下配合物1发射蓝色荧光,且在440 nm处的荧光寿命为3.2 ns。