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Using the deep eutectic solvent formed of oxalic acid and choline chloride, a new charge-assisted hydrogen-bonded host framework [Co(en)3]2[Zr2(C2O4)7]·2H2O(1) has been obtained. The title complex crystallizes in the monoclinic, space group P21/n(No. 14) with a = 7.7448(10), b = 14.5683(19), c = 19.375(3), β = 92.124(2)o, V = 2184.5(5) 3, Z = 4, Dc = 1.996 g.cm-3, F(000) = 1332, μ = 1.328 mm-1, R = 0.0353 and w R = 0.0718(Ⅰ 2σ(Ⅰ)). Single-crystal structure analysis reveals that the title complex possesses a 3D network assembled through a multitude of charge-assisted hydrogen bonds between the in situ generated anionic coordination complexes [Zr2(C2O4)7]6- and metal complexes Co(en)33+. 相似文献
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A Novel (4,6)-Connected Net Based on Dysprosium Benzenedicarboxylate, [Dy(OAc)(BDC)]n 总被引:2,自引:1,他引:1
ZHANG Lei LI Zhao-Ji QIN Ye-Yan CHENG Jian-Kai YAO Yuan-Gen 《结构化学》2008,27(8):915-918
A new lanthanide coordination polymer, [Dy(OAc)(BDC)]n 1 (OAc = acetate, BDC = 1,4-benzenediacarboxylate), has been synthesized under hydrothermal conditions. Single-crystal X-ray diffraction analysis reveals that complex 1 has infinite zigzag Dy-OAc chains, which are further connected by BDC to form a 3D metal-organic framework. According to topology analysis, this framework can be characterized as (4,6)-connected (3.4.54)(32.4.56.66) net that has never been reported before. Crystal structure for 1: space group Pbca, a = 13.314(3), b = 8.0269(18), c = 20.275(5)A, V= 2166.8(9)A3, C10H7O6Dy, Mr = 385.66, Z= 8, Dc = 2.364 g/cm^3, μ= 6.910 mm^-1, F(000) = 1448, the final R = 0.0181 and wR = 0.0520. 相似文献
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A novel sodium holmium carboxylate compound,namely Na 4 Ho 4 (μ 3-OH) 4 (1,4BDC) 6 ·6.25H 2 O (1,1,4-BDC=1,4-benzenedicarboxylate),has been solvothermally synthesized and structurally characterized.The structure features a two-fold interpenetrated three-dimensional open-framework constructed by the [Ho 4 (μ 3-OH) 4 ] 8+ clusters bridged by 1,4-BDC ligands.The Na + ions and lattice water molecules are located in the channels.The structure is further stabilized by hydrogen-bonding and π-π stacking interactions.The thermal stability of the compound has been investigated via thermogravimetric analysis. 相似文献
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A new compound [Zn3(C7NO4H3)3Cl4]·[C6NO2H6]4·4H2O (I) has been synthesized and structurally characterized by X-ray crystallography.It crystallizes in monoclinic,space group C2/c with a=16.9018(14),b=12.6902(10),c=25.1170(2),β=90.54°,V=5387.0(8)3,Z=4,Zn3C45H41Cl4N7O24,Mr=1401.76,Dc=1.728 g/cm3,F(000)=2840,μ(MoKa)=1.615 mm-1,the R= 0.0758 and wR=0.2060 for 3468 observed reflections (I 2σ(I)).Analysis of single-crystal X-ray diffraction data shows that compound I displays an interesting example of 3D supramolecular networks with perfect neutral and ionic hydrogen bonding array. 相似文献
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A new supramolecular compound, {[Cd(L)2]2[PMo12O40NO3]·CH3CN·2H2O}n 1 (L is 1,4-bis(4-imidazolyl)-2,3-diaza-1,3-butadiene), based on Cd(II)-Schiff-base and Keggin- type [PMo12O40]3- was synthesized via self-assembly and structurally characterized by elemental analysis, infrared spectroscopy, and single-crystal X-ray diffraction analysis. The crystal is of triclinic, space group P1 with a = 12.0128(11), b = 13.6196(13), c = 13.9995(13) , α = 103.868(2), β = 95.225(2), γ = 101.024(2)°, V = 2160.0(3) 3, Z = 1, C34H39N26O45Cd2Mo12P, Mr = 2938.96, Dc = 2.259 g/cm3, μ = 2.276 mm-1, F(000) = 1400, the final R = 0.0565 and wR = 0.1613 for 4973 observed reflections with I 2σ(I). The crystal structure can be described by the packing of Keggin anionic and Metal-Schiff-base cationic layers. 相似文献
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An isopolytungstate(NH4)6Na4[H2W12O42]·14H2O(1) has been synthesized in an aqueous solution and characterized by elemental analysis,IR spectroscopy,TG analysis,X-ray powder diffraction(XRD) and single-crystal X-ray diffraction.The result indicates a degradation from nitrilotriacetic acid(NTA) to NH3.The electrochemical analysis and thermal stability of 1 were also studied.The crystal data are as follows:H54N6Na4O56W12(Mr = 3332.65),orthorhombic,Pbca,a = 14.1497(15),b = 15.9414(16),c = 22.931(2) ,Z = 4,V = 5172.4(9) 3,Dc = 4.280 Mg/m3,μ = 26.729 mm-1,F(000) = 5904,the final R = 0.0809 and wR = 0.2104 for 4565(Rint = 0.1351) independent reflections.The β-[H2W12O42]10-clusters are linked through {Na2(OH2)3} groups into a 2D layer and are further connected into a 3D framework via hydrogen bonding interactions. 相似文献
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YUAN Da-Qiang WU Ming-Yan JIANG Fei-Long HONG Mao-Chun 《结构化学》2008,27(5):558-564
Two novel polymeric complexes, [Gd(HsTCAS)(H2O)7]·4H2O 1 and [Gd(HsTCAS) (CH3COCH3)(H2O)6]·6H2O 2 (H4TCAS = p-sulfonatothiacalix[4]arene), have been synthesized and characterized by single-crystal X-ray diffraction analyses. Complex 1 crystallizes in monoclinic, space group C2/m with a = 20.2308(12), b = 19.0894(10), c = 12.2448(7)A, β = 101.847(3)°, V = 4628.1(5)A^3, C24H43GdO27S8, Mr = 1169.25, Z = 4, Dc = 1.690 g/cm^3, F(000) = 2380,μ = 1.879 mm^-1, the final R = 0.0404 and wR = 0.1038 for 5127 observed reflections with I 〉 2σ(I). Complex 2 is pseudo-isostructural with complex 1. 相似文献
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A new polymer [Zn2(cam)2(bpmp)]n 1 (H2cam = D-(+)-camphoric acid, bpmp = bis(4-pyridylmethyl)piperazine) was synthesized under hydrothermal conditions. The compound crystallizes in the monoclinic system, space group P21/n with a = 12.305(9), b = 12.945(9), c = 13.619(10) A, β = 116.833(8)°, V= 1936(2)A3, Z = 4, Mr = 397.76, Dc= 1.365 Mg/m3,μ = 1.292 mm-1, F(000) = 832, the final R = 0.0578 and wR = 0.1678 for 2838 observed reflections with I 〉 2σ(I). The compound presents a three-dimensional (3D) network extended by homochiral 2D layer and bpmp ligands. From the topology point of view, the structure could be described as a 3D 6-connected mab net with (44.610.8) topology. In addition, infrared spectroscopy, elemental analyses, thermogravimetric analysis and powder X-ray diffraction properties of 1 are also investigated. 相似文献
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1INTRODUCTION Recently,cyano-bridged lanthanide-transition me-tal complexes have been extensively investigateddue to their potential applications as precursors in the preparation of rare earth orthoferrites,fluores-cent and magnetic materials[1].Various complexes of this system have been obtained in order to ex-plore the relations between structures and pro-perties by using different ligands,such as DMF,4,4?-bipy,and so on,to fill the coordination sites of lanthanide ions[2~9].But up to… 相似文献
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1 INTRODUCTION Over the last decade, there has been continuous interest in cyanide-bridged lanthanide-transition me- tal complexes due to their extensive applications in preparing rare earth orthoferrites[1], chemical sensor materials[2], fluorescent ma… 相似文献
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1INTRODUCTION The macrocyclic compounds play an important ro-le in life science and materials science[1].In recent years,teta has gained extensive attention as a raw material of crystal engineering,and its coordination behavior with metallic ion has been … 相似文献
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三羟甲基氨基甲烷与苦味酸(Pic)铜在乙醇水混合液中反应,制得少见的不对称氢键连接的超分子化合物{Cu[H2NC(CH2OH)3]2}{Pic}2?H2O。晶体属三斜晶系,空间群为P ,晶胞参数为a = 6.894(1),b = 8.219(1),c = 13.543(3) ? ?= 79.290(1),?= 8 3.36(2), ?= 84.590(1)埃轿狢20H30CuN8O22,V = 746.9(2) 3,Z = 1,Dc = 1.774 g/cm3,F(000) = 411,?= 0.844 mm-1,R = 0.0334,Rw = 0.0863。在配合物的结构单元中, Cu2+位于对称中心,分别与2个四齿配体(三羟甲基氨基甲烷)中的2个OH,1个NH2,三齿配位,呈笼状螯合。而另一个OH,因配体和中心离子构型的限制,不参与配位。 相似文献
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1 INTRODUCTION In the last decade, cyano-bridged Prussian Blueanalogues[1] have been intensively studied from theviewpoint of application as functionalized molecule-based magnets[2], chemical sensor materials[3], fluo-rescent materials[4] and zeolitic-type materials[5, , 6]etc. In 1976, a series of cyano-bridged three-dimen-sional rare earth hexacyanometalates(IIILnM(CN)6?nH2O (M = Fe or Cr, n = 4 or 5) were crystallized andsubjected to single-crystal X-ray analysis[7]. … 相似文献
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1 INTRODUCTION The chemistry of polyoxometalates has been at- tracting much attention due to the richness in their structures, electron and proton storage abilities, ther- mal stability and applications in catalysis, medicine and surface sciences[1~3]. In recent years, the mixed- valence as well as full oxidized vanadium polyoxo- anions have been crystallized with a variety of orga- nic molecules as counteranions[4~8]. However, the guiding principles of the crystal structures of poly- o… 相似文献
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3-羧基苯氧乙酸钴配合物[Co(m-CPOAH)2(H2O)4]的合成与晶体结构 总被引:5,自引:0,他引:5
合成了一个新的配合物 [Co(m-CPOAH)2(H2O)4](m-CPOAH- = 3-羧基苯氧乙酸根), 并对其进行了元素分析、红外和单晶X-射线的表征。结果表明:配合物晶体属三斜晶系, 空间群为P, 晶胞参数为a = 4.9701(10), b = 5.8701(12), c = 18.272(4) , a = 97.50(3), b = 94.76(3), g = 98.34(3), V = 520.11(18) 3, Z = 1, Mr = 521.29, Dc = 1.664 g/cm3, m = 0.901 mm-1, F(000) = 269, 最终R = 0.0415, wR = 0.0787。2个不同配体的氧乙酸上的羧基氧原子和4个配位水分子与钴原子配位, Co(Ⅱ)原子为六配位八面体构型, 且由分子间氢键形成了三维超分子氢键网络结构。 相似文献
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A new 2D Hydrogen-bonded network complex [Ni(en)2(dpas)2] (Nadpas=sodium diphenylamine sulphonic acid salt,en=ethanediamine) has been synthesized in aqueous solution,and characterized by elemental analysis,IR. The crystal structure was determined by single-crystal X-ray diffraction. The complex crystallizes in space group P21/c,with cell parameters a=0.605 6(5)nm,b=1.448 1(5) nm,c=1.711 9(5)nm,β=93.257(5)°,and V=1.498 9(14) nm3,Dc=1.497 g·cm-3,Z=2,F (000)=708,R=0.027 7,wR=0.072 5. The crystal structure shows that the nickel atom is coordinated with four nitrogen atoms from the two en and two oxygen atoms from two dpas to form a mononuclear complex. Furthermore,the adjacent complex units are extended into a 2D supramolecular network through hydrogen bonds. 相似文献
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1INTRODUCTIONInterestinpolynuclearcomplexesisstimulatedbytherolestheyplayindifferentfields,e.g.heterogeneouscatalysis,bioinorganicchemistryandthedesignofmagneticmaterials.Since1985ill,considerableattentionshavebeengiventomolecularcomplexest'isimultaneouslycomprisingdandfmetalionsduetotheirspecialmagneticproperties.Coupledpolyr^uclearsystemscontaining3delementshavebeenextensivelyinvestigatedL,3,butonlyafew,derivedfromcarboxylatesL4--63,thatcontainbothtransitionandrare--earthmetalionshavebe… 相似文献
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Solvothermal Synthesis and Structure Characterization of a 3D Hydrogen-bonded Copper Compound [Cu(H_2dhpmc)_2]·2H_2O 总被引:2,自引:0,他引:2
1 INTRODUCTION The controlled assembly of inorganic and coordination polymers from simple building blocks is an important challenge in the design of high- dimensionality systems. In the crystal engineering 'toolbox'[1], hydrogen bonding moieties are perhaps the implements used the most in the design of such supramolecular systems[2], and have been particularly strongly applied towards the synthesis of molecular magnetic materials[3~6]. Copper complexes play an important role in catalyzin… 相似文献