STRUCTURE OF（C6H5COCHCOC6H5）SmI2（THF）3

<正> (C6H5COCHCOC6H5)SmI2(THF)3,Mr= 843. 75,triclinic space group P1,a=13. 274(3),b=9. 886(3),c= 12. 526(4)A,a= 110. 89(3),B=93. 98(2),y=85. 16(2) ,V=1528. 9(8)A3,Z=2,Dc=1. 83g/cm3, (MoKa) = 0. 71069A,u= 40. 3cm-1,F(000) - 810. The structure was solved by Patterson and Fourier techniques and refined by least-squares method to a final conventional R value of 0.082(Rw= 0. 083). The central Sm(III) ion is coordinated by two iodine ions, two oxygen atoms from C6H5COCHCOC6H5 and three oxygen atoms from three THF molecules to form a distorted pentagonal bipyramid. The Sm-I distances are 3. 103 and 3. 092 A ,The Sm-O (O atom from C6H5COCHCOC6H5) distances are 2. 273 and 2. 307 A and the average Sm -O(THF) distance is 2. 500A.     

CRYSTAL AND MOLECULAR STRUCTURE OF ο-(2-CYANOETHYL)-BENZOYL FERROCENE OXIME, C_5H_5FeC_5H_4C(C_6H_5)NOC_2H_4CN

<正> INTRODUCTION. The derivatives of ferrocene are found to be increasingly used in the area of the catalysis of combustion reactions of high energy fuels and new material research. Therefore, more attention has been paid to these compounds. This work is a part of our systematic investigation on a     

CRYSTAL STRUCTURE OF BIS (η~5-CYCLOPENTADIENYL)(1,3-PROPANEDIYL-BIS(DIPHENYL-PHOSPHINE)-P,P')NICKEL(II) DODECAHYDEO-DODECABORATE (C_5H_5Ni(C_6H_5)_2PC_3H_6P-(C_6H_5)_2)_2~ ·B_(12)H_(12)~(2-)

<正> Introduction. Tertiary diphosphine-cyclopentadienyl-nickel(Ⅱ) complexes were first synthesized by Sato (Sato, et al., 1971), and their boronhydrides were prepared by Zhang (Zhang, et al., 1983). Here we report the crystal structure of the title compound in Order to correlate the reactivity of this type of compounds with their structures and bondings.     

Crystal and Molecular Structure of(η~5-C_5H_5)_2Yb(NC_4H_4)(OC_4H_8)

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆ（η~５－Ｃ_５Ｈ_５）_２Ｙｂ（ＮＣ_４Ｈ_４）（ＯＣ_４Ｈ_８）ＷａｎｇＳｈａｏ－Ｗｕ；ＹｕＹｏｎｇ－Ｆｅｉ；ＨｕＪｉ－ｐｉｎｇ；ＹｅＺｈｏｎｇ－Ｗｅｎ（ＩｎｓｔｉｔｕｔｅｏｆＯｒｇａｎｉｃＣｈ...     

四（α—噻吩甲酰三氟丙酮）合铕（Ⅲ）酸十六烷基吡啶LB膜的研究

标题配合物（Ⅰ）和硬脂酸（Ⅱ）的CHCl3溶液按不同摩尔比Ⅰ：Ⅱ=1：α（α=1,2,4,8,12)混合后，α≥2时，其π-A曲线比单一的标题配合物的有明显改善，Ⅰ：Ⅱ=1：4时，在亲水石英基片上制备了Z型LB膜，并用紫外光谱、荧光光谱和小角X射线衍射进行了表征。     

SYNTHESIS AND CRYSTAL STRUCTURE OF DINUCLEAR IRON CARBONYL DERIVATIVE (μ-SC_6H_5) (μ-P (SC_6H_5)_2) Fe_2 (CO)_5 (P-(SC_6H_5)_3)

<正> The reaction of Fe3(CO)12 with P(SPh)3 yields the tile compound. C41H30Fe2O5P2S6, Mr = 968. 65, monoclinic, space group, P21/n, a = 14. 449(9), b = 18. 046(11), c=16.871(10)(?), β=98. 76°, V = 4348(?)3, Z = 4, Dc=1. 480g/ cm3, λ(MoKα) = 0. 71073(?) The structure was determined by direct methods and difference Fourier syntheses and refined by full-matrix least-squares procedure to R = 0.084, Rw = 0.144 for 4059 reflections. Fe(1)-Fe(2) = 2. 576(6), Fe(2)-P(2) = 2.194(9)(?). The dihedral angle between the Fe(l)SFe(2) and Fe(1)PFe(2) planes is 81. 9°. The other one (dihedral angle between SFe(1)P and SFe(2)P planes) is 75. 2°.     

SYNTHESIS AND CRYSTAL STRUCTURE OF （C5H5）2Ti（o—NHPhC6H4CO2）2

<正> Cp2Ti(o-NHPhC6H4CO2)2, Mr = 602. 54, space group C2/c, a = 33. 77(2), b = 12. 611(6), c=14. 486(9) A ,β=103. 28(4)°,V = 6004(5) (?)3,Z = 8, Dc= 1. 33gcm-1, MoKa(λ=0. 71069(?)) radiation, μ = 3. 21cm-1, F(000) = 2512e, R = 0. 066, Rw= 0. 085 for 2511 radiations. The Ti atom in the molecule is coordinated by two C5H5 groups and two monodentate carboxyl ligands in a distorted tetrahedral geometry with the bonds in the range of Ti-C = 2. 334 - 2. 41(?) ; Ti-O = 1. 914(5) and 1. 919(5)(?);and the bond angles O-Ti-O = 91. 7(2)°; (cent-C5H5)-Ti-(cent-C5H5) = 135. 9(6)°.     

Structure of Molybdenum Complex of Benzothiazole－2－thiolate（η~5－C_5H_5）Mo（CO）_2（C_7H_4NS_2）

ＳｔｒｕｃｔｕｒｅｏｆＭｏｌｙｂｄｅｎｕｍＣｏｍｐｌｅｘｏｆＢｅｎｚｏｔｈｉａｚｏｌｅ－２－ｔｈｉｏｌａｔｅ（η~５－Ｃ_５Ｈ_５）Ｍｏ（ＣＯ）_２（Ｃ_７Ｈ_４ＮＳ_２）ＣｈｅｎｇＧｕｏ－Ｂａｏ~ａ；ＷｕＱｉａｎｇ－Ｊｉｎ~ｂ；ＨｕａｎｇＸｉａｏ－Ｙｉｎｇ~...     

STRUCTURE OF DIAQUA(DEMETHYLCANTHARATE)ZINC(II) Zn(C_8H_8O_5)·2H_20

<正> Mr=258.57, Monoclinic, P21/a, a=10.907(5), b=8.502(3) ,c=11.083(4) A, β=107.15(3)°, V=982.09A3, Z=4, Dx=1.729 Mgm-3, λ(MoKα)=0.71069A, μ=26.74 cm-1, F(000)=583.90, T=293K. The final R=0.0406 for 1587 unique observed reflections. The demethylcantharate ion acts as a tridentate ligand towards Zn(II) and a monodentate ligand towards another. The oxygen atoms in one carboxylate group bind with two different Zn(II) to form a chain-structure. There are four different types of oxygen coordinating with Zn(II).     

STRUCTURE OF ALKALOID WILFORGINE, C_(41)H_(47)NO_(19) 2C_2H_5OH

<正> INTRODUCTION. Tripterygium hypoglaucum(Levl)Hutch growing in Hunan,Guangxi,Yunan and Guizhou provinces of China is a plant used as a medicinetreating rheumarthritis. All alkaloids contained within this plant arecharacterzed by antiinflammatory and analgetic. Using column partitionchromatography of silica gel, we have separated out the wilforine and wilforgine from root of this plant.     

CRYSTAL STRUCTURE OF（η^5—C5H5）GdCl2（THF）3

<正> Compound (η5-C5H5)GdCl2(THF)3 was successfully prepared from action of GdCl3 and NaC5H5 in tetrahydrofuran (THF). X-ray diffraction data were collected at low temperature (about 210K). Its crystal belongs to the monoclinic space group P 21/n with a = 7. 821(2), b = 17.068(1), c=15. 057(1)(?), β=94. 76 (2)°, V = 2003. 2(10)(?)3, Z = 4, Dc=1. 69g/cm3, F(000)=1012, Mr=509. 6. The structure was solved by heavy-atom method. Least-squares refinement converged to a final R value of 0. 050. The coordination number of the Gd atom is 8. The centre of the cyclopentadienyl, the two Cl atoms and the three oxygen atoms of THF molecules form a distorted octahedron about the Gd atom.     

Syntheses and Characterizations of （η~5－C_5H_5）MoFeCo（CO）_8（μ_3－S） and （η~5－C_5H_5）_2Mo_2Fe（CO）_7（μ_3－S）：X－ray Crystal Structure of （η~5－C_5H_5）MoFeCo（CO）_8（μ_3－S）

ＳｙｎｔｈｅｓｅｓａｎｄＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｓｏｆ（η~５－Ｃ_５Ｈ_５）ＭｏＦｅＣｏ（ＣＯ）_８（μ_３－Ｓ）ａｎｄ（η~５－Ｃ_５Ｈ_５）_２Ｍｏ_２Ｆｅ（ＣＯ）_７（μ_３－Ｓ）：Ｘ－ｒａｙＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ（η~５－Ｃ_５Ｈ_...     

[Nd_2O(C_5H_5)_6](C_12H_9N_2)3Cl·mC_4H_8O的晶体结构

本文报告用单晶X-射线衍射法测定[Nd_2O(C-5H_5)_6](C_(12)H_9N_2)_3C1·mC_4H_5O的晶体结构。晶体属于单斜晶系,空间群为P2-1/c,晶胞参数为a=20.982(15),b=11.217(7),c=32.954(32),β=104.17(7)°;Z=4。Nd和C1原子坐标用直接法定出,其他原子坐标以差Fourier方法求得,经过最小二乘法修正,R因子为0.159。在分子中三个茂环皆通过η~5。键与Nd原子配位,两个Nd原子间存在桥氧原子,因而形成(Nd_2O(C_5H_5)_6)~(2-)阴离子,Nd-C键基本上属于离子键。三个邻菲罗啉基团通过氢键与C1原子连接形成大的阳离子[(C_(12)H_9N_2)3-C1]~(2+)。     

Cr(CNR)_3Cl_3和Cr(CNR)_3Cl_2B(C_8H_5)_4·H_2O(R=CH_2C_8H_5)的合成和性质研究

长期以来人们对羰基配合物进行了较为充分的研究,但忽略了与之对应的异腈配合物领域。本文在四氢呋喃溶剂中制得两个过渡金属异腈配合物,初步研究了它们的性质,并讨论了它们的红外光谱和热重分析。 1 实验部分 1。1 试剂和仪器 CrCl_3(thf)_3按文献合成。CNCH_2C_6H_5和NaB(C_6H_5)_4购自Aldrich试剂     

Crystal Structure and Molecular Structure of Binuclear Copper（Ⅱ）Complex，［Cu（C_5H_5NO）（C_6H_5COO）_2］_2

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＢｉｎｕｃｌｅａｒＣｏｐｐｅｒ（Ⅱ）Ｃｏｍｐｌｅｘ，［Ｃｕ（Ｃ_５Ｈ_５ＮＯ）（Ｃ_６Ｈ_５ＣＯＯ）_２］_２￥ＹａｎｇＲｕｉ－Ｎａ；ＨｏｕＹｉ－Ｍｉｎ；ＸｕｅＢａｏ－Ｙｕ；Ｊｉ...     

硼氢二茂铁铵盐的结构化学研究——Ⅲ.十二硼十二氢双(二茂铁甲基二甲基)铵晶体结构

标题的化合物晶体属斜方晶系,空间群为Pcnb,晶胞参数为:a=12.975(26),b=16.342(28),c=17.582(48),Z=4。晶体结构用直接法,三维Patterson函数和差值Fourier方法解出,经全矩阵最小二乘法修正,对1674个独立衍射点[I≥3σ(I)],最后偏离因子R=0.054。 该化合物属于离子型,阴离子和阳离子分别以六面体和四面体配位。     

H2O-C2H5OH-MX(NaCl等)体系中离子缔合和活度

用桥式电路测定了H_2O-C_2H_5OH-NaCl体系的摩尔电导, 并用Lee-Wheaton模型回归出H_2O-C_2H_5OH-NaCl(KCl、CsCl、KBr)体系的离子缔合常数、极限摩尔电导和距离参数, 并求出缔合反应标准自由焓。结果表明离子缔合能力的顺序为Cs~+>K~+>Na~+, Cl~->Br~-, 此四种盐在乙醇中都形成溶剂分开型离子对。并用液上空间气相色谱法测定了水-乙醇-(NaCl、KCl、KBr)体系中溶剂的活度, 用改进的Pitzer-Li公式计算了此体系的活度系数, 计算时考虑了盐在低介电常数溶剂中的离子缔合, 结果表明这种处理是合适的。还表明离子缔合程度随着乙醇浓度上升而加大, 以及盐的存在对水呈盐溶效应而对乙醇呈盐析效应。     

CRYSTAL STRUCTURE OF FeaTe_2(CO)_6(NO)(η_5-C_5H_5)

<正> The title compound belongs to triclinic system, space group PI, with dimensions: a = 9.237(1), b = 9.589(1), c = 10.424(1) A ; <*= 72.09(2)?ft- 88.79(2)? 3r=80.28(l)? Z = 2, V = 865.5 A3, Dx = 2.626 gcnr3. Final R = 0.026 and Rw = 0.036 for 2531 reflections.     

[(C_5H_4CH_3)_2HoN_4CPh]_2·[(C_5H_4CH_3)(C_5H_5)HoN_4CPh]_2的合成和晶体结构

（C5H4CH3）3Ho和（C5H4CH3）2Ho（C5H5）与5-苯基四唑（HN4CPh）在THF中反应，得到复合产物[（C5H4CH3）2HoN4CPh]2·[（C5H4CH3）（C5H5）HoN4CPh]2，该晶体属三斜晶系，P1空间群，晶胞参数为a=9．386（3），b=13．071（3），c=16.571（2）A，a=86．90（1），β=74．61（2），γ=77.30（2）°，V=1912．2（8）A3，Z=1，Dc=1.602g／cm3，Mr=922．61，μ=41．92cm－1，F（000）=896，最终偏离因子R=0．041，Rw=0．056．晶体数据显示，在同一个晶胞里有两个组成不同的分子，每一个分子都是具有对称中心的四唑基桥二聚体结构，其桥环单元-HoN3HoN3-是平面型的。每个钬原子分别被两个茂基和3个四唑基氮原子配位，形成1个边桥变形四面体构型。     

Hydrolysis of Cephanone in SDS/n-C_5H_(11)OH/H_2O System

IntroductionMicellesolutioncomposedofsurfactantscanaffect,adjustandcontrolmanychemicalreactionsaccordingtoitseffectsoflocalconcentration ,polarity ,charge ,microvis cosity,electrostatics ,etc ..1,2 Recently ,ithasarousedmuchattentiontoconductchemicalreactionsusingmi croemulsionasmicroreactor .3 7Theeffectofmicelleonthechemicalreactionstemsfromitsstaticelectricityandhy drophobicity .Usually ,cationicsurfactantcancatalyzethereactionbetweennucleophileandneutralmolecule ,whileanionicsurfactantsusp…