Synthesis and structure of 2,3,6,8,10,13,14-heptaaza-6,8,10-trinitro-4,12-dioxapentadeca-2,13-diene 2,14-bisoxide

Alkylation of potassium salt of methylnitrosohydroxylamine with 1,7-dichloro-2,4,6-triaza-2,4,6-trinitroheptane afforded 2,3,6,8,10,13,14-heptaaza-6,8,10-trinitro-4,12-dioxapentadeca-2,13-diene 2,14-dioxide. The structure of the reaction product was established by X-ray diffraction analysis.     

新颖无限三股螺旋钴配位聚合物{[Co(4,4''''-bipyridine)(4,4''''azobispyridine)_2(NCS)_2]·H_2O}_n的合成、结构和性质的研究(英文)

0IntroductionThereisagreatcurrentinterestforthecrystalengineeringofcoordinationframeworks犤1,2犦,notonlybecauseoftheirpotentialapplicationsaszeolite-likematerialsinmolecularselection,ionexchange,andcatalysis,butalsobecauseoftheirintriguingvarietyofarchitecturesandnewtopologies.Uptonow,themostimportantdrivingforcesincrystalengineeringarecoordinationbondingandhydrogenbondinginteract-ion犤3～5犦.Theuniquedirectionality,strength,andcom-plementaryofnon-covalenthydrogenandcoordinatedbondingplayanimp…     

一个新颖的二茂铁羧酸混配合物的制备、晶体结构及电化学性质研究

本文以3-二茂铁羰基丙酸(L1)、1，1′-二茂铁二羰基-3，3′-双丙酸(L2)、2，2′-联吡啶胺(dpa)以及Zn(Ac)₂·2H₂O为原料合成了一个结构新颖的混配合物[Zn₂(L1)₂(L2)(dpa)]。X-射线单晶衍射分析表明，该配合物是一个中心对称的双核配合物，并在N-H…O氢键和C-H…O氢键的作用下形成了二维的超分子化合物。采用差示脉冲对该配合物的电化学性质进行了初步的研究。     

3-氨基-酪氨酸盐酸盐的合成与晶体结构(英)

CommentThebiologicalrelevanceoftyrosinenitrationisasubjectofmuchinterest,becauseextensiveevidencesupportsformationof3鄄nitrotyrosineinvivounderavarietyofdifferentpathologicalconditions.Nitratedtyrosineresiduesarewidelyconsideredasbiomarkersfortheinvolveme…     

(AG)(DNP)的合成和结构表征

通过氨基胍(AG)重碳酸盐与2,4-二硝基苯酚(DNP)反应,制备了新型离子型化合物2,4-二硝基苯酚氨基胍(AG)-(DNP).通过X射线单晶衍射、元素分析、红外光谱和热分析对其进行了表征.测试结果表明:该晶体属于单斜晶系,空间群P21/n,a=0.4922(1)nm,b=2.3307(3)nm,c=0.9404(6)nm,β=91.621(2)°,Z=2,Dc=1.590g/cm3,F(000)=144.该化合物分子由氨基胍阳离子和2,4-二硝基苯酚阴离子以静电引力结合,分子间存在氢键.该化合物是一种具有潜在应用前景的气体发生剂.     

Ag-CV的表面增强共振散射光谱研究

采用共振散射光谱和紫外可见光谱研究了银胶与结晶紫的相互作用。在ＰＨ为４．０的ＨＡｃ－ＮａＡｃ缓冲溶液中,奶胶在３４５ｎｍ和７００ｎｍ有两个共振散射峰;当加入带下辈民的阳离子染料结晶紫后,产生表面增强效应,３４５ｎｍ和７００ｎｍ处的共振散身信号大为增强,从而获得灵敏的表面增强共振散射光谱。     

一维链状配位聚合物[M(H2bpb)(H2O)4](SO4)2·6H2O[M=Zn(Ⅱ)，Cu(Ⅱ)]的合成及晶体结构表征

设计并合成了一个含吡啶基团的柔性配体：N，N′-Bis(3-pyridylmethyl)-1，4-benzenedimethylamine(bpb)。通过bpb与硫酸锌及硫酸铜反应得到了两个新型具有一维链状结构的配位聚合物：[M(H₂bpb)(H₂O)₄](SO₄)₂·6H₂O[M=Zn(Ⅱ) 1，Cu(Ⅱ) 2]。X-射线晶体结构测定表明，这两个     

沙林酸印迹聚邻苯二胺纳米膜制备及结构表征

采用电化学聚合法合成了对有机磷毒剂沙林具有特异识别的聚邻苯二胺(PPD)分子印迹纳米膜(iPPD).利用石英晶体微天平(QCM)证实了印迹效应的存在，并用循环伏安法(CV)、AFM、XPS进行了系统的结构表征.结果表明，分子印迹膜的膜厚约20 nm，膜的表面呈“石林”状，疏松多孔，具有良好的吸附性能.分子印迹主要影响聚合物的三维排列，而聚合物的化学组成没有发生改变.该种分子印迹纳米膜在选择性检测军用毒剂沙林中具有良好的应用前景.     

Crystal Structures of Cs+-Crown Ether Complexes Containing Polynuclear Mercury Iodide Anions

Reactions of CsI and HgI₂ with benzo-15-crown-5 (B15C5) and 15-crown-5 (15C5) in an ethanol-acetone mixture produced [Cs(B15C5)₂]₂[Hg₂I₆] (1) and {[Cs(15C5)]₂[Hg₂I₆]}_n (2), respectively. The structures of the two complexes are quite different. Molar ratios of Cs⁺ : crown ether are 1 : 2 in 1 and 1 : 1 in 2. Complex 1 consists of two Cs(B15C5) ₂ ⁺ cations and a Hg₂I ₆ ^2- anion. Cs⁺ lies between the two crown-5 ligands, resulting in a sandwich-type cation. Cationic Cs(B15C5) ₂ ⁺ and anionic Hg₂I ₆ ^2- are linked together by electrostatic interactions and the complex 1 is an ion pair compound. Complex 2 consists of infinite [Cs(15C5)]₂[Hg₂I₆] units. Each structural unit contains two Cs(15C5)⁺ cations and a Hg₂I ₆ ^2- anion. Cs⁺ is coordinated by five oxygen atoms of 15C5, three iodine atoms of Hg₂I ₆ ^2- , and an iodine atom of Hg₂I ₆ ^2- in an adjacent structural unit. The interactions between the Cs⁺ of Cs(15C5)⁺ and an I^– in Hg₂I ₆ ^2- from adjacent structural units polymerize the complex 2, resulting in a one-dimensional network structure. The anions of Hg₂I ₆ ^2- in both complexes are similar. The two mercury atoms are linked through two bridging iodine atoms and each mercury is also coordinated by two terminal iodines. Crystal data for 1: space group P2₁/c (No. 14), a = 12.253(4), b = 20.945(7), c = 16.110(6) Å, = 111.0(1)°, V = 3860 ų, Z = 4, R = 0.082 (R _w = 0.089). Crystal data for 2: space group P2₁/c (No. 14), a = 12.157(4), b = 8.546(4), c = 20.666(6) Å, = 91.54(3)°, V = 2146 ų, Z = 4, R = 0.034 (R _w = 0.048).     

罗丹明B内酯单晶的生长及晶体结构

从含有罗丹明B的溶胶-凝胶中首次水热合成了罗丹明B内酯的单晶,并测定了其晶体结构。每个不对称单位含有两个独立分子。