一种新颖一维铅碘聚合物[(Pb_2I_5)(L-H~ )·2DMF]_n(L=Piperazine)的自组装合成和晶体结构(英文)

0IntroductionIncreasinginterestisfocusedonthestudyofmagnetic,electronicandoptoelectronicpropertiesoflow鄄dimensionalorganic鄄inorganichybridcompoun鄄ds[1~3].Studiesshowthatcomplexconsistingoforganicandinorganiccomponentshavegreatpotentialforthecreationoff…     

一种新颖有机-无机杂化配位聚合物[(C_(10)H_(16)N)_2(Pb_2I_6)·2DMF·H_2O]_n的自组装合成和晶体结构

0IntroductionConstructionoflow鄄dimensionalorganic鄄inorgan鄄icsupramoleculararrayswithnovelpropertiesrepre鄄sentsnewdirectionsinsolid鄄statechemistry[1,2].Gener鄄allythephysicalpropertiesofsuchlowdimensionalcompoundsdifferfromthoseoftheparentcompound.Our     

一种新颖有机／无机杂化配位聚合物[（C7H18N）（Ag2l3）]n的合成、结构及量子化学计算

A one dimensional coordination polymer, [(C7H18N)(Ag2l3)]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 (Ag2l3)s^-.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 Methyhriethylammonium 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.     

一种新颖有机-无机杂化配位聚合物[(C10H16N)2（Pb2I6）·2DMF·H2O]n的自组装合成和晶体结构(英)

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, D_c=2.470 Mg·m^-3, F(000)=738, chemical formula C₂₆H₄₈N₄O₃Pb₂I₆ and M_r=1 640.46, μ（MoKα）=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.     

有机-无机杂化配位聚合物{[C12H28N2][(Pb3I8) (DMF)2]•2DMF}n的晶体及电子结构

合成了一种新颖有机-无机杂化配位聚合物{[C₁₂H₂₈N₂] [(Pb₃I₈)(DMF)₂]•2DMF}_n, 并进行了红外、紫外、热重表征, 采用X射线衍射方法确定了晶体结构. 结构解析表明, 整个分子由阳离子(双质子化的N,N'-二丁基哌嗪)及聚阴离子链([(Pb₃I₈)(DMF)₂]_n^2-)组成, 它们之间由静电作用结合在一起形成一维链状配位聚合物. 依据晶体结构数据, 采用Gaussian03程序对产物进行量子化学计算.     

[Ni(bipy)3][(μ-oxo)Fe2Cl6]化合物的制备与研究

标题化合物是由 [Ni(bipy) 3 ]2 +络合物与FeCl2 在MeOH、DMF及异丙醇混合溶剂中直接反应得到的 ,它可溶于水、乙醇和DMF等极性溶剂 ,不溶于乙醚 .X -射线结晶学研究表明 :标题物中含有 [Ni(bipy) 3 ]2 +和 [(μ -oxo)Fe2 Cl6]2 - 离子 ,晶胞参数 :单斜 ,P2 1 c,a=0 .970 9nm ,b =2 .6 40 9nm ,c =1.40 14nm ,β =10 0 .2 4° ,V =3.5 36nm3 ,Z =4,Dc =1.6 30g cm3 ,F (0 0 0 ) =1744 ,μ =1.82 4nm- 1 .化学实验式为 :C3 0 H2 4Cl6Fe2 N6NiO .分子量 Mr=86 7.6 6 .对标题物进行X -荧光元素分析、红外、可见吸收光谱和磁化率的研究 .     

地球演化的新突变期：地球结构畸变与全球问题

全球问题的出现已引起国际科学界和各国政府的高度重视,但目前对它的实质、根源和前景的认识还很不一致。本文从地球系统演化的角度,认为地球正处于结构畸变、功能严重失调的新突变期:全球问题的前景主要取决于人类圈的行动,只有发挥人类圈的积极作用,建立以循环及其形式递增为基础的发展模式,才能克服全球问题,促进地球进化。     

Self-assembly and Crystal Structure of a Novel Inorganic-organic Hybrid Coordination： {（C12H14N2）[Ag2I4]}n

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…     

四硫基．联吡啶合锌的合成与性能研究

标题化合物采用锌粉 ,硫粉及联吡啶在N ,N—二甲基甲酰胺中直接反应 ,最后得到橙黄色晶体 ,它不溶于水、醇和二硫化碳 ,可溶于DMF .通过元素分析 ,表明其化学式为ZnS4 (C10H8N2 ) .对标题化合物进行红外光谱归属 ,同时进行热重分析、循环伏安分析、紫外光谱分析及荧光性能研究 .结果表明 ,在λEm=2 82nm处有荧光效应 .     

Synthesis and Structure of Ag(I)-Containing Coordination Polymers Based on Quaternary Ammonium Template Reagent

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…