四氯·两个二(2-乙基已基)硫醚合铂(IV)配合物的合成及其分子结构

用萃取法合成了[Pt(DEHS)_2Cl_4],对配合物进行了元素分析,摩尔电导,差热一热重和红外光谱等测试并经X射线单晶结构分析确定了配合物的结构。     

Structure and luminescence of a nitrate-bridged heterotrinuclear Cu2-Pr complex with compartmental Schiff base ligand

A unique heterotrinuclear nitrate-bridged complex of hexanitrate praseodymium(III) and dicopper(II) compartmental species has been synthesized and characterized by X-ray single crystal structure analysis. The structure determination indicates that the dinuclear copper moiety undergoes a tilted deformation (with respect to the dicopper complex) upon connection to the lanthanide species via a rare nitrate bridge. The trinuclear species is highly fluorescent owing to the presence of praseodymium.     

聚丙烯酸/聚氧化乙烯高分子复合溶液的结构与粘度

通过溶液折光指数和粘度测定,研究了聚丙烯酸（ＰＡＡ）与聚氧化乙烯（ＰＥＯ）高分子链间在复合溶液中的相互作用和ＰＡＡ／ＰＥＯ高分子氢键复合溶液的结构与粘度,研究了复合溶液粘度随溶液ｐＨ值的变化规律及不同浓度时剪切速率对复合溶液粘度和复合增粘效果的影响。结果表明：ＰＡＡ／ＰＥＯ复合溶液结构不同于ＰＡＡ和ＰＥＯ两组分聚合物溶液结构,ＰＡＡ与ＰＥＯ高分子链间的氢键相互作用形成构象更为伸展、流体力学体积列大     

A zinc(II) complex with tris(2-( N -methyl)benzimidazlylmethyl)amine and salicylate: synthesis,crystal structure,and DNA-binding

A five-coordinate zinc complex with tris(2-(N-methyl)benzimidazylmethyl)amine (Mentb) and salicylate, with composition [Zn(Mentb)(salicylate)](NO₃), was synthesized and characterized by elemental analysis, IR and UV-Vis spectral measurements. The crystal structure of the zinc complex shows that Zn(II) is bonded to tris(2-(N-methyl)benzimidazylmethyl)amine (Mentb) and a salicylate through four nitrogens and one oxygen, and the coordination geometry is best described as distorted trigonal-bipyramid. The DNA-binding of the Zn(II) complex and Mentb were investigated by spectrophotometric methods and viscosity measurements, and the results suggest that the Zn(II) complex binds to DNA via intercalation; the binding affinity of the Zn(II) complex to DNA is greater than Mentb. Additionally, Zn(II) complex exhibited potential to scavenge hydroxyl radical in vitro.     

双烟酰基取代的类环肽合成及对二价铜离子的配位研究

在模拟蛋白质的分子识别功能方面,人工合成以氨基酸为主要结构单元的环肽由于更接近于生命物质,因此作为主体分子来模拟生命现象更贴切.目前,这方面的研究主要集中在环肽对碱金属、碱土金属以及磷酸酯的识别或跨膜传输等方面.环肽通过骨架或侧臂与过渡金属离子的配位研究也仅有几例.实际上,许多过渡金属,如Cu(Ⅱ),Zn(Ⅱ)和Fe(Ⅱ)等在稳定蛋白质的构象及增强.     

Synthesis and characterization of novel Cd(II), Zn(II) and Ni(II) complexes with 2-quinolinecarboxaldehyde selenosemicarbazone. Crystal structure of bis(2-quinolinecarboxaldehyde selenosemicarbazonato)nickel(II)

New complexes of Cd(II), Zn(II) and Ni(II) with 2-quinolinecarboxaldehyde selenosemicarbazone (Hqasesc) were synthesized and structurally characterized. The structure of the ligand, Cd(II) and Zn(II) complexes was determined by NMR and IR spectroscopy, elemental microanalysis and molar conductivity measurements. Both complexes occur in solution in two forms, the major tetrahedral and minor octahedral. In the major Cd(II) complex one qasesc⁻ ligand is coordinated as a tridentate, the fourth coordination site being occupied by acetate, while in the major Zn(II) complex two qasesc⁻ ligands are coordinated as bidentates. In both minor complexes two qasesc⁻ ligands are coordinated as tridentates forming the octahedral geometry around the central metal ion. The only paramagnetic complex in the series is Ni(II) complex for which X-ray structure analysis was performed. The complex has the angularly distorted octahedral geometry with two qasesc⁻ ligands coordinated as tridentates, in a similar way as in the minor complexes of Cd(II) and Zn(II).     

配合物[Ag(chlsp)2](F3CCOO)的合成，谱学和晶体结构

A silver(Ⅰ) complex [Ag(chlsp)₂](CF₃CO₂)， (chlsp=(E)-4-(4-chlorostyryl) pyridine)， was synthesized by the reaction between AgCF₃CO₂ and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)₂](CF₃CO₂) was characterized by elemental analysis， IR and determined by using single crystal X-ray diffraction. The result shows that the complex crystallize in triclinic system， with space group P1， a=0.109 7(2) nm， b=0.111 7(2) nm， c=0.117 2(2) nm， α=73.60(3)°， β=85.03(3)°， γ=81.82(3)°， V=0.136 2(4) nm³， Z=2. The moleculars are connected by Ag…Ag and Ag…Cl interactions， resulting in a three-dimensional network. CCDC: 631131.     

二维层状锌配合物[Zn(bibm)(glu)]n的合成、晶体结构及荧光性质

用水热法合成了1个新的锌配合物[Zn(bibm)(glu)]n(bibm=4,4′-二(苯并咪唑-1-甲基)联苯;glu=戊二酸),对它进行了红外光谱、元素分析、XRD、热重和荧光等表征,并用X-射线单晶衍射法测定了配合物的单晶结构。该配合物属单斜晶系,P21/n空间群,为二维层状结构。实验结果表明该配合物具有较好的荧光性质,是潜在的荧光光学材料。     

Struktur eines Blei(II)‐Komplexes mit verknüpften Monothioquadratationen als Liganden

A Lead(II) Complex with Linked Monothiosquarate Ions as Ligands The thiosquarate ligand bis‐1,2‐(2‐hydroxy‐3,4dione‐cyclobut‐1‐enylsulfanyl)‐ethane and its lead(II) complex have been prepared. According to the crystal structure analysis the complex has a unique layer structure in the solid state. The layers consist of a superposition of cyclic dimeric complexes and of chain like polymeric complexes. The shortest nonbonding Pb…Pb distances are 4.0 Å.     

镍系复合氧化物Li_aNi_(0.78)Co_(0.2)Cd_(0.02)O_2的合成及电化学性能

以LiOH·H2O,含镉球状Ni(OH)2和Co2O3为原料,采用改进固相反应法合成镍系复合氧化物LiaNi0.78Co0.2Cd0.02O2锂离子电池正极材料,并通过ICP＿AES,XRD,SEM,TEM及电化学性能测试对该材料进行表征.实验表明,由Co和Cd部分取代Ni元素的复合正极材料LiaNi0.78Co0.2Cd0.02O2仍具有较完好的层状结构,表面分布均匀,颗粒粒径分布窄,且电化学性能稳定.常温下具有较高的可逆容量和优异的循环稳定性,其可逆容量最高达157.8mAh/g,循环50次后容量仍保持138.3mAh/g左右.     

3-羧基甲氧基-2-萘甲酸钴配合物的水热合成、晶体结构和电化学研究

标题化合物[Co(L)(H2O)]n是由Co(OAc)2.4H2O、3-羧基甲氧基-2-萘甲酸(H2L)、NaOH经水热反应得到。采用元素分析、IR及X-射线衍射法表征了该配合物。晶体结构表明:晶体属于单斜晶系,空间群P21,Flack参数值为0.026(13)。晶胞参数:a=0.505 87(7)nm,b=0.942 88(12)nm,c=1.234 03(16)nm,β=95.015(9)°,V=0.586 35(13)nm3,Z=2,Mr=321.14,Dc=1.819 g.cm-3,μ=1.487mm-1,F(000)=326,Rint=0.023 8,R1=0.022 8,wR2=0.053 2。配合物的中心钴离子是六配位稍变形的八面体结构,3-羧基甲氧基-2-萘甲酸将配合物桥联成二维层状结构。对配合物的电化学行为进行了研究。     

Synthesis, Structure and Biological Activity of Zn（Ⅱ） Complex with Tris（benzimidazol-2-yl-methyl）amine Ligand

A new Zn(II) mononuclear complex with tris(benzimidazol‐2‐yl‐methyl)amine (NTB) was synthesized with stoichiometry of [Zn(NTB)NO₃]NO₃ · DIPY · DMF (DIPY : 4,4′‐dipyridyl). The complex was characterized by elemental analysis, UV and IR spectra. The crystal structure was determined by using X‐ray diffraction analysis. The crystal structure indicates that four N atoms and one O atom coordinate to zinc ion to construct a distorted trigonal‐dipyramid configuration. Three nonprotonated N atoms from imidazole groups are in the equatorial plane, one alkylamino N atom and one O atom from NO₃^?_‐ in the axial directions. The biological activity assay shows that this complex presents certain biological activity by means of pyrogallol autoxidation and it can be called a model compound of superoxide dismutase (SOD).     

大环二羰四胺Ni(Ⅱ)单核和Ni(Ⅱ)-Cu(Ⅱ)双核配合物的合成、表征及电化学性质

合成了一种草酰胺桥联大环二羰四胺Ni(Ⅱ )单核配合物 ,并以此为母体合成了Ni (Ⅱ ) -Cu (Ⅱ )双核配合物 .用元素分析、红外光谱、差热分析、紫外光谱、摩尔电导以及循环伏安等测试手段对配合物进行了表征和电化学性质研究 .经分析 ,标题配合物具有草酰胺桥联结构 ,Ni(Ⅱ )处于平面正方场 ,Cu (Ⅱ )处于八面体场中 .循环伏安测试表明此类配合物能稳定Ni(Ⅲ ) .     

A reasonable explanation for the mechanism of photo-promoted chemoselective aerobic oxidation of alcohols using (ON)Ru(salen) complex as catalyst

The mechanism of aerobic oxidation of alcohols using (ON)Ru(salen) complex as catalyst under photo-irradiation was examined through studies of kinetics of the oxidation, kinetic isotope effect in the oxidation, and effect of the ligand structure on the chemoselectivity of the oxidation of primary and secondary alcohols. It was demonstrated that the aerobic oxidation includes an intramolecular hydrogen atom transfer process that is attributed to realization of efficient differentiation of primary and secondary alcohols in the oxidation.     

Vanadium alkoxide catalyzed polymerization of vinyl chloride

The polymerization of vinyl chloride (VC) with vanadium complex/alkylaluminum catalyst was investigated. In the case of polymerization with vanadium oxytriethoxide (VO(OEt)₃), poly(vinyl chloride) was obtained in a good yield. The effect of cocatalyst, solvent, and cocatalyst/precatalyst ratio was observed. The structure of the polymer obtained with VO(OEt)₃/i‐Bu₃Al catalyst consisted of regular head‐to‐tail sequence and isobutyl chain‐end structure. VO(OEt)₃/alkylaluminum catalyst was able to copolymerize VC with styrene, 1‐butene, methyl methacrylate, and methyl acrylate. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011     

1,1,1-三[3-（2-苯并咪唑基）-2-氧杂丙基]丙烷镍配合物合成以及结构测定

合成了一个新的三脚架结构配体及其镍配合物的晶体。该晶体属单斜晶系, P2_l/n空间群,a = 1.2151(4) nm, b = 1.5535(5) nm, c = 2.1740(7) nm, β = 90.551(18)°, V = 4.103(2) nm~3, Z = 4, M_r = 834.03, R = 0.0556, wR = 0.1256, μ = 0.541 mm~(-1), F(000) = 1758。配合物中Ni与配体的三个N和 三个O构成六配位变形八面体结构。晶体中存在着分子间氢键,晶体结构依靠库仑 力和氢键作用而稳定。     

3，4-吡啶二甲酸根钙配合物的合成、结构和性质

配体3,4-吡啶二酸(H2pdc)和CaCO3反应合成了配合物[Ca2(pdc)2(H2O)7](1),用单晶X-射线、FTIR和元素分析对生成的晶体进行了表征。Ca(Ⅱ)采取八配位扭曲四方反棱柱几何构型,整个pdc2-作为三齿桥联配体连结3个不同的Ca(Ⅱ)原子形成一维链结构,一维链由π-π相互作用和O-H…N氢键连结形成二维层,二维层再进一步由O-H…O氢键连结形成三维结构。还研究了配合物1的荧光和热重性质。CCDC:806131。     

Synthesis, spectroscopic characterization and crystal structure of mixed ligand Ni(II) complex of N-4-diethylaminosalicylidine-N′-4-nitrobenzoyl hydrazone and 4-picoline

A novel mixed ligand nickel complex [NiLB] [H₂L-N-4-diethylaminosalicylidine-N′-4-nitrobenzoyl hydrazone and B-4-picoline] has been synthesized and characterized by elemental analysis, IR spectrum, UV-Vis spectrum and structure has been confirmed by single crystal X-ray structure analysis. The crystal structure reveals that the complex adopts distorted square planar structure with ONO donor atoms of primary ligand and N donor atom of the secondary ligand 4-picoline.     

以邻菲咯啉及均苯三甲酸为配体的钴(Ⅱ)配合物的合成、晶体结构及性质研究

采用水热条件合成了1个钴配合物[Co(phen)(HBTC)(H2O)3].2.5H2O(phen=1,10-邻菲罗啉,H3BTC=均苯三甲酸),通过元素分析,红外光谱,紫外光谱,热重分析对其结构和性质进行表征及研究,用X-射线单晶衍射测定了该化合物的晶体结构。晶体属于单斜晶系,空间群为P21/n,晶胞参数a=0.78889(8)nm,b=1.9000(2)nm,c=1.56387(16)nm,β=98.780(2)°,V=2.3166(4)nm3,Z=4。标题化合物的不对称单元由1个配合物分子[Co(phen)(HBTC)(H2O)3]及2.5个结晶水分子组成,氢键将它们连接起来,形成了三维网络结构。利用循环伏安法测定了配合物的电化学性质,并测定了配合物的荧光光谱,发现配合物在383和469 nm两处有发射峰。     

瓜环与含羟基功能基二胺包结配合物的晶体结构及相互作用的研究

合成并表征了含羟基功能基的二胺1,3-二(2-氨基苯氧基)-2-丙醇(客体). 利用X射线衍射方法研究了客体与八元瓜环Q[8]所形成包结配合物的晶体结构. 结果表明主客体间形成了1∶2的包结配合物, 两个客体分子分别从瓜环的两个端口进入瓜环内腔, 在腔内两个客体分子中的苯环间存在着π-π相互作用. 利用1H NMR技术及紫外-可见吸收光谱对主客体间的相互作用进行考察, 所得结果与晶体结构吻合.