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1.
The supramolecular terbium complex, {[Tb(SIP)(H2O)5]2(bpy)3(H2O)}n (NaH2SIP = 5-sulfoisophthalic acid monosodium salt and bpy = 4,4'-bipyridyl), has been synthesized by the hydrothermal reaction of Tb4O7 with NaH2SIP and bpy at 165 ℃, and characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, powder X-ray diffraction and photoluminescence spectrum. It crystallizes in a monoclinic system, space group C2/c, with a = 30.6840(1), b = 10.9206(2), c = 17.4967(3) A, β= 111.931(1)°, V = 5438.65(14) A^3, Z = 4, C46H52N6O25S2Tb2, Mr = 1470.90, Dc = 1.796 g/cm^3, p = 2.747 mm^-1, F(000) = 2928, the final R = 0.0654 and wR = 0.1322 for 3806 observed reflections with I 〉 2σ(I). In the neutral [Tb(SIP)(H2O)5]2 motif, the Tb(III) ions are linked by the SIP ligands to form a one-dimensional zigzag chain propagating along the c axis. The zigzag chains are linked together by hydrogen bonds and π-π stacking interactions to form a two-dimensional supramolecular framework. The uncoordinated bpy molecules act as pillars to extend the two-dimensional sheets into a distinctive pillared three-dimensional supramolecular structure through O-H...N hydrogen bonds. The photoluminescence of the complex was investigated at room temperature in the solid state.  相似文献   

2.
IntroductionThesupramolecularcomplexeformedbytheweakinteractions (electrostaticinteraction ,hydrogenbonds ,vanderWaalsforce ,short rangeexclusionforce ,etc .)ofmorethantwosortsofspeciesisanorganizingentitythatusuallypossessesspecialstructureandfunction .1Sup…  相似文献   

3.
刘晓玲  傅志勇 《结构化学》2009,28(4):477-481
The compound (H3IDC)(Prz)0.5(H2O) (H3IDC = imidazole-4,5-dicarboxylate, Prz = piperazine) has been prepared from a hydrothermal approach and was characterized by IR analysis and X-ray diffraction. Its crystal structure consists of discrete 4,5-imidazole-dicarboxylate, H2O and piperazine molecules. The whole structural motif was assembled by three different non-covalent interactions of O-H…O, N-H…O and π-π stacking, which play an important role in packing the molecules. Interestingly, the connections between imidazole-4,5-dicarboxylate molecule and water molecule result in a helical polymeric chain. Crystal data for compound 1: monoclinic system, space group P21/c, a = 6.4600(13), b = 19.910(4), c = 6.9123(14) A^°, β = 94.26(3)°, V= 886.6(3) A^°^3, Z= 4, C7H10O5N3, Mr = 216.18.  相似文献   

4.
2-羟基吡啶、希土高氯酸盐和乙酸钴在乙腈中反应,制备了九配位化合物[Tb(CH_3COO)_3·2H_2O]_2该晶体为三斜晶系,P~(?)空间群,其晶胞参数为a=8.870(4)(?),b=9.247(1)(?),c=10.586(1)(?),α=65.13(1)°,β=64.43(2)°,γ=62.16(4)°,V=665.97(?)~3,Z=1,F(000)=394。测定了配合物的红外光谱。讨论了它的生成机制。  相似文献   

5.
MolecularStructureofOrganolanthanideComplex[(η~5-CH_3C_5H_4)_2Tb(μ-Cl)(THF)]_2WUZhong-Zhi;HUANGZu-En;CAIRui-Fang(DepartmentofChe...  相似文献   

6.
1 INTRODUCTION In the past years, polyoxovanadates have attracted extensive interest in solid-state material chemistry owing to the formation of mixed-valence com- pounds that exhibit rich electronic and magnetic properties relevant to catalysis, medicine and ma- terials science[1~4]. The following polyoxovanadates have been found and structurally characterized: [V5O14]3-, [V6O19]8-, [V10O28]6-, [V12O32]4-, [V13- O34]3-, [V15O36]5-, [V15O42]9-, [V17O42]4-, [V18- O42]12-, [V16O38]7…  相似文献   

7.
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   

8.
A novel Mn(Ⅱ) complex Mn2(phen)2(p-MBA)4(H2O) has been hydrothermally synthesized by the reaction of p-methyl benzoic acid (p-MBA) with 1,10-phenanthroline (phen). Crystal data for this complex: monoclinic, space group C2/c, a= 2.3328(3), b =1.5549(2), c = 1.5557(2) nm, β = 121.726(2)°, V= 4.7997(11) nm^3, Mr = 1028.85, Dc = 1.424 g/cm^3, Z = 4, F(000) = 2128, μ(MoKa) = 0.590mm^-1, GOOF = 1.060, R = 0.0333 and wR = 0.0767. In the crystal, each Mn(Ⅱ) ion is coordinated by two nitrogen atoms from one o-phenanthroline molecule, three oxygen atoms from three p-methyl benzoic acids and one oxygen atom from one water molecule, giving a six-coordinate distorted octahedral coordination geometry. Two neighboring Mn(Ⅱ) ions are bridged by two p-methyl benzoic acid groups and one water molecule, and their end positions are respectively coordinated by one 1,10-phenanthroline and one p-methyl benzoic acid molecule, giving a binuclear cage structure, of which the Mn(Ⅱ)…Mn(Ⅱ) distance is 0.3502 nm.  相似文献   

9.
Self-assembly of Ag(I) nitrate, 1,3-bis(4-pyridyl)propane (bpp) and phthalic acid monopotassium salt (KHphth) in CH3OH-H2O solution produced the title complex, {[Ag(bpp)]2(Hphth)(NO3)·(H2O)2}n, which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, and photoluminescent spectrum. Single-crystal X-ray analysis revealed that the complex crystallizes in a monoclinic system, space group P21/c, with a = 15.4174(5), b = 8.6398(2), c = 25.2466(8) , β = 91.072(1)o, V = 3362.34(17) 3, Z = 4, C34H37N5O9Ag2, Mr = 875.43, Dc = 1.729 g/cm3, μ = 1.228 mm-1, F(000) = 1768, the final R = 0.0749 and wR = 0.1580 for 5754 reflections with I > 2σ(I). The Ag atom is coordinated by two N atoms from two bpp molecules in an approximately linear geometry. The Ag(I) ions are linked by the bpp molecules to form one-dimensional zigzag chains propagating along the c axis. The Hphth- and nitrate counter-ions are bridged by solvent water molecules through hydrogen bonds to generate a one-dimensional chain extending along the b axis. Electrostatic interactions between cations and anions, extensive hydrogen bonds and π-π interactions are responsible for the three-dimensional supramolecular structure. In the solid state, the compound exhibits blue photoluminescence with the maximum at 436 nm upon excitation at 344 nm.  相似文献   

10.
路嫔  单永奎 《结构化学》1996,15(4):301-306
SynthesisandCrystalStructureofK_8H_5[La(SiW_2Mo_9O_(39))_2(H_2O)_(17)]4H_2OLuBin(DepartmentofChemistry,HarbinNormalUniversity,Har?..  相似文献   

11.
1INTRoDUCTIONAlotofresultsoncobaltcomplexstructureshavebeenreportedforseveraldecades.Theinterestofresearchinthisfieldhasneverbeenreducedbecausethecobaltcomplexesplayaveryimportantroleinthelifescienceandcatalysis,etc[1-6).WereportherethesynthesisandstructureofcomplexCo(C,NO,H'),.H,O.2EXPERIMENTALAllreagentsandsolventsusedareofARgradefromcommericalsourceswithoutfurtherpurification.ThetitlecompoundCo(C,NO,H,),.H,Owassynthesizedbythefollowingmethod.When2.4g(ca.1mmol)ofCoCl2.6H2Ow…  相似文献   

12.
谢学群  杨春龙  李前进 《结构化学》2007,26(9):1009-1012
The title compound [Mn(DPMT)2Cl2(H2O)2] (DPMT = 1-[[2-(2,4-dichlorophenyl)- 1,3-dioxolan-2-yl]methyl]-1H-1,2,4-triazole) was synthesized by the reaction of MnCl2·4H2O and DPMT in ethanol solution and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P21/c with a = 23.913(4), b = 7.8883(13), c = 8.6291(14) , β = 95.816(3)o, V = 1619.4(5) 3, Z = 2, C24H26Cl6MnN6O6, Mr = 762.15, Dc = 1.563 g/cm3, μ = 0.950 mm-1, S = 1.045, F(000) = 774, R = 0.0462 and wR = 0.0981. The molecular structure is a centrosymmetric conformation, and two ligands are symmetrically located on both sides of the Mn atom. The manganese atom is surrounded by two nitrogen atoms from ligands, two chlorine atoms and two oxygen atoms from water molecules to form a slightly distorted octahedral geometry.  相似文献   

13.
Terbium p-chlorobenzoate complex with 1,10-phenanthroline, [Tb( p-ClBA)_3phen]_2 (1) has been obtained in the ethanol solution, where p-ClBA=p-chlorobenzoate and phen=1,10-phenanthroline. It crystallizes in the triclinic system, space group P1, a=1.008 1(2) nm, b=1.185 7(2) nm, c=1.431 1(3) nm, α=110.826(4)°, β=96.436(4)°, γ=101.737(4)°, Z=2. The two Tb(Ⅲ) ions are linked by four carboxylate groups through their bidentate bridging modes, forming a dimeric unit with crystallographic inversion center. Each terbium ion has an eight-coordinate geometry with four of the coordination sites occupied by four oxygen atoms from the four bridging carboxylates, respectively, two oxygen atoms from bidentate carboxylate, and the remaining positions occupied by two nitrogen atoms from a 1,10-phenanthroline molecule. The Tb(Ⅲ) ion adopt a distorted square antiprism coordination geometry. The excitation and luminescence data observed at room temperature show that the title complex emits very intensive green fluorescence under ultraviolet light. The result of thermal analysis indicates the complex [Tb(p-ClBA)_3phen]_2 is quite stable to heat. CCDC: 221921.  相似文献   

14.
1 INTRODUCTION In the past few years, more extensive attention had been paid to the research on the chemistry of the heterometallic complexes containing simultaneously lanthanide (Ln) and transition metal ions[1~9]. Interest has been largely focused on the magnetic properties resulting from the Gd(III)-Cu(II) couple, which has been found to be directly ferromagnetic irrespective of the structural details[1~5]. Recent studies have further revealed that the magnitude of the ferromagnet…  相似文献   

15.
1INTRODUCT1ONThestudyofheteropolycomplexeshasbeenstartedmorethanonehundredyearsago.lnthepasttwentyyearstheheteropoly-coinplexesoftungstenandmolyb-denumhavebeenusedinpreparingcatalystfield,biologicalandionexchangemateri-als.Sothesecomplexeshavebeendeeplystudiedandexaminedbynewtechnicalmethodst2~7J.Wehavereportedthesynthesismethodandcrystalstructureoflanthanideele-mentneodymiumheteropolymolybdate(NH4),2H,,tNd'Mo,,O,,,(H,O)1,j.22H,O('i.Inthispaperwereportthesynthesismethodandcrystalstruc…  相似文献   

16.
The title compound {[(C6H5CH2)2Sn]2(O)(Cl2)}2 has been synthesized by the reaction of bisbenzyltin dichloride with NaOH dilute solution, and its structure was determined by X-ray diffraction. The crystal belongs to monoclinic, space group C2/c, with a = 2.5081(17), b = 1.0089(7), c = 2.0909(14) nm, β = 94.267(8)°, V= 5.276(6) nm^3, Z = 4, De= 1.734 g/cm^3,μ(MoKa) = 21.55 cm^-1, F(000) = 2704, R = 0.0398 and Rw = 0.1024. According to structural analysis, the tin atom adopts a distorted five-coordinate trigonal bipyramidal geometry, and the ladder-like structure is shaped by one planar four-membered Sn2O2 ring together with two planar four-membered Sn2OCl rings.  相似文献   

17.
0引言由于羧酸化合物具有丰富的配位结构类型,而且羧酸桥联多核配合物广泛存在于生物体内金属蛋白和金属酶的活性部位,使其在配位化学中占有重要地位[1]。尤其是近年来,研究发现羧酸配位聚合物具有潜在的光学、磁学、吸附分离、信息储存以及催化等性能,使得由苯二甲酸,均苯三甲  相似文献   

18.
具有层状结构的无机-有机杂化复合聚合物材料有广泛的应用前景,它引起化学工作者的浓厚兴趣,成为一个热门的研究领域[1~3].众所周知,这类聚合物具有许多特殊的性能,在新功能材料(如选择性催化材料、分子识别材料、超高纯度分离材料、光电材料、新型半导体材料、磁性材料)开发中显示了诱人的应用前景[4~6].类似于有机磷酸化合物,有机磺酸已被报道易同多种金属形成各种各样具有层状或者柱层状的化合物,这些金属包括碱金属、碱土金属、过渡金属及镧系金属[7~9].多种官能团如-NH2、-OH、-COOH和-SO3H一起形成一类新型的无机-有机杂化复合聚合物材料.文献中报道的配体有4-羧基苯磺酸[7]、3,5-二羧基苯磺酸[10]、1,4-苯二磺酸[11].到目前为止,使用3-羧基苯磺酸作为配体的还未见报道,本文使用3-羧基苯磺酸作为配体与ZnSO4·H2O和2,2'-联吡啶反应合成了一个层状Zn配合物.用IR和元素分析对配合物进行了表征,用X-射线单晶衍射测定了该配合物的单晶结构,并对该配合物的荧光性质进行了研究.  相似文献   

19.
1INTRODUCTIONIntherecentyears,organolanthanideamideshaveattractedagreatdealofat-tention.Forexample,theyareabletoreactwithCOtogiveinsertionproduct[(C,Me,)2SinjZt(PhN)OCCO(NPh)jti},withaminoolefinstoyieldcorrespondingheterocyclestZ),withmethylmethacrylate(MMA)toleadtoMMApolymeriza-tiont3'43.Inordertoexplorefurthertheirchemistry,wesynthesizedsomeanionicandneutrallanthanoceneamidestoinvestigatetheirchemicalreactivities(5--7).Inthispaper,wewouldliketodescribethepreparationofanotheranio…  相似文献   

20.
1 INTRODUCTION Polynitrile compound Na(cda) is a very useful ligand and its complexes have been synthesized[1~3], in which the two-dimensional Eu(III) complex exhi- bits the strongest fluorescence and non-linear optic property[4]. We originally want to…  相似文献   

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