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1.
1 INTRODUCTION The construction of low-dimensional organic- inorganic hybrid material with novel properties re- presents new directions in solid-state chemistry[1, 2]. Generally the physical properties of such low di- mensional compounds differ from tho…  相似文献   

2.
1 INTRODUCTION The organic-inorganic hybrid material is a new type of composite between organic and inorganic polymers, and has captured the imaginations of che- mists due to its potential applications in electric con- ductivity, magnetism, ion exchange…  相似文献   

3.
A novel coordination polymer [(C10H16N)2(Pb2I6)·2DMF·H2O]n (C10H16N=N-butyl-2-Methy-Pyridinium) was synthesized by the reaction of Pb(NO3)2 with C6H10NI at room temperature in DMF solvent and structurally characterized by means of X-ray single diffraction. The title compound crystallizes in triclinic system, space group P1 with a=1.1237(2) nm, b=1.25330(16) nm, c=0.808 00(12) nm, α=102.523(4)°, β=92.475(5)°, γ=95.712(10)°, V=1.102 9(3) nm3, Z=1, Dc=2.470 Mg·m-3, F(000)=738, chemical formula C26H48N4O3Pb2I6 and Mr=1 640.46, μ(Mo)=11.849 mm-1, the final R=0.057 8 and wR=0.166 5 for 3716 observed reflections with I > 2σ(I). The title compound consists of cations ([(C10H16N)+] and anion chain(PbI3-),they are combined by static attracting forces in the crystal. DMF and H2O locate between the organic and inorganic moiety. CCDC: 210812.  相似文献   

4.
1 INTRODUCTION The construction and characterizations of low dimensional inorganic/organic hybrid materials have increasingly attracted the interest of chemists duo to their unusual topologies and relevance in a wide range of applications in materials science including transport, magnetic materials, catalysts, and lumi- nescent materials[1]. Among the various families of hybrid functional materials, the family of metal halides is an important one. As a branch of the metal halides, silver(…  相似文献   

5.
1 INTRODUCTION The influence of organic components on the mi- crostructures of inorganic solids has been extensively reported in recent years and shown to provide an efficacious method for the design of new materials[1~3]. Owing to their potential applications as new func- tional solid materials, interest in self-assembled co- ordination polymers with novel physical properties has grown rapidly[4~7], and many complexes like Bu4N[Ag3I4][8], {[(n-C4H9)4N]2Ag4.95Cu(I)1.05I8}n[9], [C6H…  相似文献   

6.
1 INTRODUCTION The crystal structures of several tetrahalogeno-mercurates (II) have been reported with a wide va-riety of stereochemical arrangements[1, . These stu- 2]dies have shown that the Hg atom…  相似文献   

7.
1 INTRODUCTION Construction of low-dimensional organic-inor-ganic hybrid materials with novel properties repre-sents the new direction in solid-state chemistry[1, 2]Because of halometallates being the particularlysuitable systems for designing the construction ounusual low-dimensional structural archetypes, fromwhich peculiar electronic, thermal, catalytic and ma-gnetic properties can arise[3], a series of such com-pounds have been synthesized by our research groupsuch as[(C22H50N2)(Ag2…  相似文献   

8.
The coordination polymer [(DBU-H)(PbI3)]n(DBU=catena-(1,8-diazabicyclo[5,4,0]-undec-7-ene) was synthesized by self-assembly reaction of DBU and PbI2 at room temperature with pH=6.0 and structurally characterized by means of X-ray single crystal diffraction. It crystallizes in monoclinic system with space group P21/c and crystal parameters a = 1.1940(2) nm, b = 1.7409(4) nm, c = 0.81347(16) nm, β= 100.32(3)°, chemical formula C9H17N213Pb and Mr=741.15, V= 1.6635(6) nm^3, Z=4, Dc=2.959 g/cm^3, F(000)= 1304,μ(Mo Kα)= 15.687 mm^-1, the final R=0.0389 and wR=0.0635 for 2279 observed reflections with 1〉2σ(I). Structure analysis shows that the inorganic anion chain consists of distorted PbI6 octahedra, which shares the same faces with adjacent PbI6 units to form one-dimensional infinite chains along the c-axis. Anion chains are surrounded by protonated (DBU-H)^+ cations. Anion chains and cations are in combination with each other by static attracting forces in the crystal to form so-called organic-inorganic hybrid structure. According to the crystal structure data, quantum chemical calculation with DFT at B3LYP level was used to reveal the electronic structure of title compound.  相似文献   

9.
标题化合物由AgI、CuI和(n-C4H9)4NI在DMF溶剂中直接反应而得。晶体结.构通过单晶X-射线衍射法确定,其晶体属于单斜晶系,空间群P21/c,a=9.4342(4),b=15.7638(7),c=18.877(1)??=100.65(1)?V=2758.9(2)3,化学式C32H72N2Ag4.95Cu1.05I8,Mr=2100.79,Dc=2.529g/cm3,Z=2,(MoK?=6.618cm-1,F(000)=1930。在1.70≤?≤27.46范围内收集到22473个衍射点,独立衍射点6175(Rint=0.0753),其中可观测衍射点4158个(I>2(I))。晶体结构用直接法和差傅立叶合成方法找出初步结构模型,再分别对Ag和Cu的坐标进行修正,最后用全矩阵最小二乘法对266个变量进行精修,最终偏离因子R=0.0476,wR=0.1315。标题化合物的结构由[(M6I8)-]阴离子链和链间的n-Bu4N+阳离子组成。  相似文献   

10.
A one dimensional coordination polymer, [(C7H18N)(Ag2I3)]n((C7H18N)+=Methyltriethylammonium) has been successfully synthesized and characterized by X-ray single-crystal diffraction method. Structure analysis shows that the compound consists of organic cations(Methyltriethylammonium) and inorganic anion chains (Ag2I3)n-. The inorganic moiety consists of AgI4 tetrahedron, which shares the same edges with adjacent AgI4 tetrahedrons to form one-dimensional infinite double chains along a-axis. There exists weak interaction among Ag…Ag atoms in the crystal. Anion chains are surrounded by Methyltriethylammonium cations. Anion chains and cations are in combination with each other by static attracting forces in the crystal to form so-called organic-inorganic hybrid structure. According to the crystal structure data, quantum chemistry calculation with DFT on B3LYP level was used to reveal the electronic structure of title compound. CCDC: 254288.  相似文献   

11.
The lead iodide adduct [(Pb2I5)(L-H+)·2DMF]n(L=piperazine) has been prepared by self-assembly and structurally characterized. It presents one dimensional structure and crystallizes in Triclinic, P1 space group with the crystal cell parameter: a=0.922 06(18) nm, b=1.237 5(3) nm, c=1.297 2(3) nm, α=99.05(3)°, β=102.98(3)°, γ=105.30(3)°, and V=1.353 8(6) nm3, Z=2, Dc=3.078 Mg·m-3, μ(Mo)=18.127 mm-1, F(000)=1 085, chemical formula C16H43N8O4Pb4I10 and Mr=2 509.39, the final R=0.053 3 and wR=0.146 4 for 3 889 observed reflections with I>2σ(I). CCDC: 250760.  相似文献   

12.
A new heteropolyoxotungstate [(C2H4N2)4(P4Co3W4O28H6)(H2C2O4)]n with a three-dimensional framework was hydrothermally synthesized.The compound crystallizes in a tetragonal system,space group I41/a with a = 17.1006(17),b = 17.1006(7),c = 10.7525(5),V = 3144.2(2)3,Z = 4,Dc = 3.795 g·cm-3,F(000) = 3300,MoKα(λ = 0.71073 ),μ = 16.460 mm-1,the final R = 0.0335 and wR = 0.0776.In the heteropolyoxotungstate,tungsten-oxygen octahedra are linked by sharing two cis-vertexes into an infinite helical chain extending along the c axis.Cobalt atoms in the octahedral geometry act as the linkers of these chains,forming a three-dimensional framework.The cobalt and phosphorus atoms in the tetrahedral geometry play a role in stabilizing the three-dimensional framework.Ethylenediamine molecules are polymerized into organic chains which locate in the interspaces of the framework in the way of interwinding with the W-O chains.  相似文献   

13.
The space group of [(H2O)(C3H4N2)(O2CCH=CHCO2Zn)]n, which was originally described in the acentric Pc space group (Liu et al., Chin. J. Struct. Chem. 2004, 23, 160~163), is re-described in the centric P21/c space group.The crystal structure of (H2O)(C3H4N2)O2C-CH=CHCO2Zn was refined in the acentric Pc space group on 266 variables to R = 0.037 for the 1926 of the 2067 obeying the I > 2σ criterion[1]. The structure is better described in the centric P21/c space group (Table 1) as the two indepen-dent formula units are related by a center of symmetry. The 21 screw axis is must be pre-sent, as noted from the systematically absent 0k0 (k = 2n + 1) reflections in the 3302 reflections that were simulated[2, 3] from the published cell dimensions and atomic coordinates. Crystallo-graphica[4] estimates the hemisphere of reflections to be 3302, so that only a little more than the minimum monoclinic data must have been collec-ted in the study. A revision from Pc to P21/c is not particularly common[5] as the P21/c space group is uniquely determined from systematic absences. The polymeric chain propagates linearly along the c-axis of the unit cell (Fig. 1).  相似文献   

14.
配位聚合物{[Zn(TSC)(MAL)]·H2O}n的制备及结构表征   总被引:1,自引:0,他引:1       下载免费PDF全文
The novel Zn complex, {[Zn(TSC)(MAL)]·H2O}n (1), where TSC is thiosemicarbazide and MAL is malonate radicle, was synthesized by self-assembling from the reaction of stoichiometric zinc chloride, thiosemicarbazide and malonic acid in solution at pH 4.5~5.0. The structural and physicochemical properties were characterized by X-ray diffraction, infrared spectroscopy, electronic spectra and thermal analysis. The crystal data for the title coordination polymer: Monoclinic, P21/c, β=107.808(1)°, a=0.937 59(1) nm, b=1.110 83(1) nm, c=0.921 00(2) nm, Z=2, μ=2.919 mm-1, R1=0.039 0, wR2=0.099 4. The structure feature is that the bridging dicarboxylates effectively link the zinc centers to form polymeric chain in a zig-zag way, which is stabilized by N-H…O, N-H…S and O-H…O hydrogen bonds. CCDC: 231861.  相似文献   

15.
A novel one-dimensional copper(II) coordination polymer of {[Cu(4-CPOA)(3- PyOH)2(H2O)2]·H2O}n (4-CPOA2- = 4-carboxyphenoxyacetate dianion, 3-PyOH = 3-hydroxypyri- dine) has been synthesized and characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. The complex C19H22N2O10Cu crystallizes in triclinic system, space group P-1with a = 7.672(2), b = 18.490(4), c = 13.271(3) (A), α = 72.81(3), β = 84.64(3), γ = 87.28(3)°, V = 1026.3(4) (A)3, Z = 2, Mr = 501.94, Dc = 1.624 g/cm3, μ = 1.126 mm-1, F(000) = 518, the final R = 0.0580 and wR = 0.1310 for 3364 observed reflections with I > 2σ(I). Each Cu(II) ion is coordinated with two different carboxyl O atoms from two 4-carboxyphenoxyacetate groups, two N atoms from two 3-PyOH ligands and two water molecules, residing in a distorted octahedral environment. Adjacent Cu(II) atoms are linked by bi-monodentate 4-CPOA2- groups into an one-dimensional chain along the b axis. A three-dimensional supramolecular network is constructed by O-H…O hydrogen bonds.  相似文献   

16.
1 INTRODUCTION Solid-state supramolecular chemistry and materialscience have shown quite spectacular advances overthe last two decades. At present, supramolecular che-mistry is one of the most prosperous fields in thewhole of chemistry due to their intriguing structuraldiversity and potential application as functional ma-terials, such as metallic conductivity[1], superconduc-tivity[2], non-linear optical behavior[3] and molecularmagnetism[4] invoked from the accumulation of com-posite or…  相似文献   

17.
Four new thioantimonates(III) with compositions [(C3H10NO)(C3H10N)][Sb8S13] ( 1 ) (C3H9NO = 1‐amino‐3‐propanol, C3H9N = propylamine), [(C2H8NO)(C2H8N)(CH5N)][Sb8S13] ( 2 ) (C2H7NO = ethanolamine, C2H7N = ethylamine, CH5N = methylamine), [(C6H16N2)(C6H14N2)][Sb6S10] ( 3 ) (C6H14N2 = 1,2‐diaminocyclohexane) and [C8H22N2][Sb4S7] ( 4 ) (C8H20N2 = 1,8‐diaminooctane) were synthesized under solvothermal conditions. Compound 1 : triclinic space group P$\bar{1}$ , a = 6.9695(6) Å, b = 13.8095(12) Å, c = 18.0354(17) Å, α = 98.367(11), β = 96.097(11) and γ = 101.281(11)°; compound 2 : monoclinic space group P21/m, a = 7.1668(5), b = 25.8986(14), c = 16.0436(11) Å, β = 96.847(8)°; compound 3 : monoclinic space group P21/n, a = 11.6194(9), b = 10.2445(5) Å, c = 27.3590(18) Å, β = 91.909(6)°; compound 4 : triclinic space group P$\bar{1}$ , a = 7.0743(6), b = 12.0846(11), c = 13.9933(14) Å, α = 114.723(10), β = 97.595(11), γ = 93.272(11)°. The main structural feature of the two atoms thick layered [Sb8S13]2– anion in 1 are large nearly rectangular pores with dimensions 11.2 × 11.7 Å. The layers are stacked perpendicular to [100] to form tunnels being directed along [100]. In contrast to 1 the structure of 2 contains a [Sb8S13]2– chain anion with Sb12S12 pores measuring about 8.9 × 11.5 Å. Only if longer Sb–S distances are considered as bonding interactions a layered anion is formed. The chain anion [Sb6S10]2– in compound 3 is unique and is constructed by corner‐sharing SbS3 pyramids. Two symmetry‐related single chains consisting of alternating SbS3 units and Sb3S3 rings are bound to Sb4S4 rings in chair conformation. Finally, in the structure of 4 the SbS3 and SbS4 moieties are joined corner‐linked to form a chain of alternating SbS4 units and (SbS3)3 blocks. Neighboring chains are connected into sheets that contain relatively large Sb10S10 heterorings. The sheets are further connected by sulfur atoms generating four atoms thick double sheets.  相似文献   

18.
19.
用MnSO4H2O和哌嗪在水-甲醇混合溶剂中反应得到了1个超分子化合物[H2(C4H10N2)](SO4)(H2O) (C4H14N2O5S)。 该晶体属单斜晶系, 空间群为P21/n, 晶胞参数为: a = 6.386(1), b = 11.695(2), c = 11.680(2) ? = 101.06(3), V = 856.1(3) 3, Z = 4, Mr =202.23 , Dc = 1.569 g/cm3, F(000) = 432, ?= 0.368 mm-1。 该化合物是由[H2(C4H10N2)]2+、SO42-、H2O通过氢键自组装而形成的。 其中[H2(C4H10N2)]2+存在2种椅式构象:一种[H2(C4H10N2)]2+与4个SO42-、2个H2O通过氢键相连, 另一种[H2(C4H10N2)]2+则与6个SO42-相连。 它们分别沿着b、c方向交替排列展开, 通过SO42-桥联成二维的层状结构;层与层之间在NH…O、CH…O、OH…O氢键的作用下互相连接, 形成了具有网状结构的三维超分子化合物。 差热及热重测试表明:该化合物从92℃开始分解,首先失去1个H2O, 然后再失去[H2(C4H10N2)]2+和SO4 2-。  相似文献   

20.
A novel one-dimensional coordination polymer, [Cd( μ-DPIA)2(H2O)]n (HDPIA=4,5-Diphenylimidazole-1-acetic acid), was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. It crystallizes in the orthogonal space group Pca22 with unit cell parameters: a=1.509 6(3) nm, b=0.611 1(1) nm, c=3.216 4(6) nm, and V=2.967 1(10) nm3, Z=4, R=0.032 7, wR=0.086 7. The Cd atom is seven-coordinated by four O atoms and two N atoms from two chelating DPIA- ligands and one water molecule, and displays a distorted pentagonal bipyramid coordination geometry. Each DPIA- ligand bridges two adjacent Cd atoms, forming a infinite chain along the a axis direction. The Cd…Cd separation within the polymer is 0.765 0(3) nm. A layer structure which parallels to the ab plane is further constructed by hydrogen bonding interactions. CCDC: 254247.  相似文献   

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