Synthesis, Crystal Structure and Luminescence Properties of a Cadmium(Ⅱ) Complex Based on 2-Hydroxy-6-methylisonicotinic Acid

A new cadmium（Ⅱ） complex[Cd（Hminic）（IP）]n（1,Hminic = 2-hydroxy-6-methylisonicotinic acid,IP = imidazo[4,5-f]-l,10-phenanthroline）,has been synthesized by the reaction of a Hminic and auxiliary N-containing ligands with Cd（Ⅱ） ion under hydrothermal conditions.The complex was studied by elemental analysis,IR spectroscopy and X-ray crystallography.It is formulated as C（20）H（13）CdN5O3,crystallizes in monoclinic system,space group C2/c with α=9.6764（8）,b = 26.767（2）,c = 14.1332（11） A and β= 97.4510（10）°.V= 3629.7（5） A^3,Z = 8,Mr=483.75,Dc = 1.770 g/cm^3,F（000） = 1484 and μ= 1.237 mm^（-1）.The final refinement gave R = 0.0309 and wR = 0.0703 for 4151 reflections with I 〉2σ（I）.In the structure of 1,two Cd（Ⅱ） atoms are joined by a pair of μ2-hydroxyl oxygen atoms giving rise to a dinuclear Cd（Ⅱ） unit which is bridged by Hminic linkers to form a 1D ladder-like polymer chain.The chelating ligand IP coordinated to the Cd（Ⅱ） atom,and alternately attached to both sides of the ladder-like polymer chain.Adjacent chains are further bound together by strong intermolecular hydrogen bonds and face-to-face π…πinteractions,resulting in the formation of a 3D supramolecular architecture.Furthermore,the thermal stability and luminescent properties of this complex and the free ligands have been investigated.

Cadmium(II)-1,4-phenylenediacetate Complex with Green Luminescence

The title complex, formulated as {[Cd（pda）（phen）]·3H2O}, 1 （pda = 1,4-phenylenediacetate, phen = 1,10′-phenanthroline）, has been hydrothermally synthesized and determimned by X-ray crystallography. Crystallographic data： triclinic, space group P1^-, a = 10.375 （7）, b = 10.435（1）, c = 12.040（1） A.α = 68.503（1）, ,β= 86.371（1）, γ= 66.231（1）°, Mr = 538.82, V = 1104.5（8） ,A^3, Z = 2, Dc = 1.620 g/cm^3,μ = 1.035 mm^-1, F（000） = 544, the final R = 0.0380 and wR = 0.0985 （w = 1/[σ^2（F0^2） ＋ （0.0559P）^2 ＋ 1.5319P], where P = （F0^2＋ 2Fc^2）/3） based on 3444 observed reflections with I 〉2σ（I）. Complex 1 features a two-dimensional layer. Fluorescent analysis reveals that it exhibits intense green luminescence with the maximum at around 516 nm.

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）.

A 2-Fold Interpenetrated Framework Assembled from Pyridine-3-carboxylate Ligand and Transition Metal:Synthesis,Structure and Photoluminescent Property

A novel cadmium（Ⅱ） coordination polymer [Cd2（3-pa）4（4,4＇-bpy）（H2O）].3.08H2O 1 has been synthesized by pyridine-3-carboxylate （3-pall） and CdO with exo-bidentate rigid dipyridyl ligand 4,4＇-bipyridine （4,4＇-bpy） by using a hydrothermal method, its structure was determined by single-crystal X-ray diffraction and its luminescent property was also documented. Complex 1 crystallizes in orthorhombic space group Pbcn with a = 21.4074（14）, b = 27.1119（18）, c = 12.3879（8） A, V = 7189.9（8） A3, Z = 8, C34H32.16Cd2N6O12.08, Mr= 942.85, Dc = 1.742 g/cms, p = 1.255 mm-1 and F（000） = 3766. The structure was solved by direct methods and refined to R = 0.0353 and wR = 0.0891 for 6278 observed reflections （I 〉 2σ（I））. The most prominent structural feature is the mutual interpenetration of two identical 3-D open frameworks via filling the large void space, which gives a 2-fold interpenetrating architecture during the self-assembly process.

3-羧基苯氧乙酸构筑的Cd(Ⅱ)配位聚合物的合成、晶体结构及荧光性质(英文)

通过水热方法 ,采用3-羧基苯氧乙酸(3-H2CPOA=3-carboxyphenoxyacetatic acid)和phen(phen=1,10-phenanthroline)与Cd(OAc)2.2H2O反应,合成了一个具有一维双链结构的配位聚合物[Cd(3-CPOA)(phen)]n(1),并对其结构和荧光性质进行了研究。结构分析结果表明该聚合物的晶体属于单斜晶系,C2空间群。2个镉(Ⅱ)离子、2个3-CPOA2-配体和2个phen配体形成了1个[Cd2(3-CPOA)2(phen)2]环,这些环通过镉(Ⅱ)离子与3-CPOA2-配体的配位作用形成了1个一维双链结构。链与链之间又通过C-H…O氢键作用形成了1个三维的配位框架。研究表明,该聚合物在室温下能发出很强的蓝色荧光。

基于2-(4-吡啶基)-1H-咪唑-4,5-二羧酸配体的镉(Ⅱ)配合物的晶体结构及发光性质（英文）

在水热条件下,以2-(4-吡啶基)-1H-咪唑-4,5-二羧酸(H3PIDC)和1,10-菲咯啉衍生物为混合配体合成了2个镉(Ⅱ)配合物{[Cd3(HPIDC)3(DPPZ)3]·7H2O}n(1)和[Cd(HPIDC)(Imphen)(H2O)]2(2)(DPPZ=二吡啶并[3,2-a∶2′,3′-c]吩嗪;Imphen=咪唑并[4,5-f][1,10]菲咯啉),利用元素分析、红外光谱以及单晶X-射线衍射表征其结构。分析表明配合物1和2分别为一维链状与零维结构。此外,2个配合物展示了优良的热稳定性及光致发光特性。

2,4-二氯苯氧乙酸构筑的双核镉(Ⅱ)配合物的合成、晶体结构、荧光和电化学性质(英文)

The study of carboxyl complexes has drawn great interests,mainly because of their intriguing variety of architectures and topologies as well as potential applications in many fields,such as functional materials,biochemistry,medicine,and so

A One-dimensional Transition Metal Complex Constructed from 24-Membered Hinge-shaped Macrocycles with Salicylic Acid and 1,3-Bis(4-pyridyl)propane

A new 1-D coordination polymer [Cd（Hsal）2（bpp）2] 1 was hydrothermally synthesi- zed by self-assembly of the corresponding metal oxide and salicylic acid （H2sal） with exo-bidentate flexible dipyridyl ligand 1,3-bis（4-pyridyl）propane （bpp）. X-ray crystal structure analysis reveals that complex 1 crystallizes in monoclinic,space group C2/c with a = 18.942（3）,b = 12.9309（19）,c = 16.504（2） A,β = 120.072（2）°,V = 3498.3（9）A^3,Z = 4,C40H38CdN4O6,Mr = 783.14,Dc = 1.487 g/cm^3,μ = 0.679 mm^-1,F（000） = 1608,R = 0.0619 and wR = 0.1435 for 3153 observed reflections （I 〉 2σ（I））. The most remarkable feature of 1 lies in the 1-D chain by repeating [Cd2（bpp）2] units which consist of a 24-membered macrocyclic ring. The 1-D motifs are further connected by C–H… O hydrogen bonds to generate a 2-D structure. In addition,thermal stability and luminescent property of compound 1 were also documented.

一维链状萘氧乙酸镉(Ⅱ)配位聚合物[Cd_2(2-naph)_4(H_2O)_2]_n的水热合成、晶体结构及荧光性质

羧酸配位聚合物是金属离子与有机羧酸构造块通过配位键和其他分子间弱作用力经自组装而成的一维、二维、三维的配位聚合物。由于这些配位聚合物具有新颖的拓扑结构和在功能材料方面的潜在应用,又由于羧酸配合物比较稳定,所以设计和调控特殊配位聚合物成了当前的研究热点。

樟脑酸根及双咪唑基配体构筑的镉(Ⅱ)配位聚合物的合成、晶体结构及荧光性质(英文)

以硝酸镉,樟脑酸(H2CAM)和1,3,5-三(1-咪唑基-亚甲基)-2,4,6-三甲基苯(titmb)为原料,采用水热合成的方法得到了一个三维配位聚合物{[Cd2(titmb)(CAM)2]·2H2O}n。通过元素分析、红外光谱以及X-射线单晶洐射对其进行了表征。该晶体属三斜晶系,P1空间群。Cd(Ⅱ)离子通过CAM配体桥联形成一维链状结构,链与链再通过titmb配体连接成新型三维(4.64.8)2(42.64.89)(62.8)2拓扑的结构。室温下该配合物表现出较强的荧光发射。

Assembly of a New Fluorescent Cd(Ⅱ)Coordination Compound with a Versatile Multidentate N-Donor Building Block 3-(2-Pyridyl)-5-(3'-pyridyl)-1,2,4-triazole

Assembly of Cd（Ⅱ） nitrate with a new dipyridyltriazole building block 3-（2-pyridyl）-5-（3＇-pyridyl）-1H-1,2,4-triazole（2,3＇-Hbpt） and benzoic acid（Hba） yields a new coordination compound [Cd（2,3A-bpt）（ba）（H2O）] which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, TGA and XRPD analysis. Single-crystal X-ray diffraction analysis indicates that the complex belongs to triclinic system, space group P1 with a = 6.8972（6）, b = 8.8182（7）, c = 16.0484（1） A, α = 75.6330（1）, β = 85.294（2）, γ = 69.3450（1）°, V = 884.76（13） A3, Z = 2, Dc = 1.778 g/cm^3, μ = 1.276 mm-1, Mr = 473.76, F（000） = 472, the final R = 0.0380 and wR = 0.1054 with I 2σ（I）. The Cd（Ⅱ） ion is coordinated by three N-terminal atoms from two 2,3A-Hbpt ligands as well as three O-terminal atoms from ba- and lattice water forming a distorted octahedral coordinated geometry. With the lattice water as hydrogen bond donor, the structure of the title complex is linked into a 2D layer-hole structure from the 0D motif. Theoretical calculation based on density functional theory（DFT） for the ligand is also employed to explicate the stability of different conformations. Moreover, the complex exhibits strong solid state fluorescent emission at room temperature which indicates that the title complex could be a good candidate for potential photoactive materials.

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。

一维Z型链状配合物[Cd(BDC)(H_2C2EIm)(H_2O)]_n的水热合成、晶体结构和荧光性质研究(英文)

水热合成了1个新配合物[Cd(BDC)(H2C2EIm)(H2O)]n(BDC=对二苯甲酸;H2C2EIm=2,2′-乙基双苯丙咪唑)。通过元素分析、红外光谱、热重以及X-射线单晶洐射对其进行了表征。该晶体属三斜晶系,P1空间群。Cd髤原子通过BDC和H2C2EIm 2种配体连接成一维Z型带状结构,带与带之间通过N-H…O,O-H…O连接成三维超分子结构。室温下配合物具有较强的荧光发射光谱。

二聚体配合物[Cd(5-oxo-4-oxa-tricyclo[4．2．1．0]nonane-9-carboxylic radical)2(phen)]2的合成、晶体结构及荧光性质

由简单小分子配体和金属镉离子形成的配合物通过氢键可以构筑具有高级有序结构的分子聚集体，这些分子聚集体在制备具有磁性、生物活性、光学性质和催化性能等新材料方面有着潜在的应用前景。由于Cd（Ⅱ）金属配合物具有很好的荧光性能及抗菌等性质而受到人们关注。近年来．对于以羧酸为配体与金属离子配位形成的配合物有大量报道．

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。近年来，我们也合成了一些新的羧酸配位聚合物，并对其性质进行了分析．我们使用较多的配体主要是芳香羧酸、柔性羧酸及杂环饱和羧酸，而以杂环不饱和羧酸和邻菲咯啉为配体的镉配位聚合物报道相对较少。

一维链状配位聚合物｛[Cd_2(1,8-nap)_2(H_2O)_2](bpp)_2｝_n的水热合成、晶体结构及荧光性质(英文)

The title complex,{[Cd2(1,8-nap)2(H2O)2](bpp)2}n(1) ,a cadmium complex based on mixed naphthalene-1,8-dicarboxylate(1,8-nap) and flexible 1,3-bi(4-pyridyl) propane(bpp) ligands,has been hydrothermally synthes-ized.It consists of a one-dimensional chain along c axis,which is derived from dimeric unit [Cd2(1,8-nap)2(H2O)2] linked by a pair of bpp ligands.In every [Cd2(1,8-nap)2(H2O)2] dimeric unit,two 1,8-nap act as bridging ligands to connect two Cd(Ⅱ) atoms,forming a sixteen-membered ring.Each Cd(Ⅱ) atom is in a distorted octahedral environment,coordinated by one aqua,two 1,8-nap and two bridging bpp ligands.In addition,two bridging bpp ligands connected two neighboring Cd(Ⅱ) atoms form a twenty-four-membered ring.The TGA and Luminescence property in solid state of complex 1 have been further studied and discussed in this paper.CCDC:669293.

配合物{Cd(phen)[(C_6H_5)_2C(OH)COO]_2}_2·H_2O的合成、晶体结构及荧光性质

羧酸配合物在配位化学中占有重要地位。羧酸配合物有丰富的拓扑结构、较高的稳定性，在磁学、光学、催化、生物等诸多领域有广泛的应用前景，羧酸配合物引起了人们广泛的兴趣和极大的关注^[1-3]。近年来，我们用小位阻的羧酸配体合成了一些羧酸配合物^[4-6]，而对于大位阻的羧酸配体体系我们研究很少。

二维配合物[Cd_3(HBTA)_2(BIPA)_3]_n的水热合成、晶体结构和荧光性质研究(英文)

Great interest has been focused on the rapidly expanding field of the construction of novel functional metal-organic frameworks(MOFs)owing to their variety of intriguing architectures and topologies and their potential applications in

二维配合物{[Cd(bpds)(bpp)2]·2H2O}n的水热合成、晶体结构和荧光性质研究(英文)

A novel two-dimensional cadmium(Ⅱ) complex {[Cd(bpds)(bpp)2]·2H2O}n (1) with 4,4′-biphenyldisulfonic acid (H2bpds) and 1,3-bis(4-pyridyl)propane (bpp) has been synthesized by means of hydrothermal method and characterized by elemental analysis, IR spectrum, thermal analysis and single-crystal X-ray diffraction. The crystal is of triclinic, space group P1 with a=0.900 96(12) nm, b=1.098 84(14) nm, c=1.125 71(15) nm, α=115.907(2)°, β= 92.307 (2)°, γ=105.383 (2)°, V=0.950 8(2) nm3, Dc=1.497 g·cm-3, Z=1, F(000)=440, Goof=1.046, R1=0.028 2, wR2= 0.074 9. Complex 1 shows a novel two-dimensional (2D) lamellar structure and further extended into a 3D supramolecular structure through O-H…O and C-H…O hydrogen bonding interactions. Luminescent studies show that complex 1 exhibits intense blue fluorescent emission. CCDC: 769593.

配合物[Cd(C9H8O3N)2(2,2′-bipy)(H2O)]2·(H2O)3的合成、结构及荧光和电化学性质(英文)

以对乙酰氨基苯甲酸和2,2′-联吡啶为配体合成了一个新配合物[Cd(C9H8O3N)2(2,2′-bipy)(H2O)]2·(H2O)3。该配合物晶体属三斜晶系,空间群P1,晶胞参数:a=1.2559(3)nm,b=1.5068(3)nm,c=1.6507(3)nm,α=112.14(3)°,β=101.83(3)°,γ=93.84(3)°,V=2.7959(10)nm3,Dc=1.592g·cm-3,Z=4,μ(MoKα)=0.840mm-1,F(000)=1364,最终偏离因子R1=0.0276,wR2=0.0683。标题配合物的不对称单元由2个独立的单核结构Cd(C9H8O3N)2(2,2′-bipy)(H2O)和3个晶格水分子组成。中心镉髤离子处于六配位的变形八面体环境中。本工作测定了配合物的荧光和电化学性能。