共查询到20条相似文献,搜索用时 12 毫秒
1.
U. Dembowski H. W. Roesky E. Pohl R. Herbst-Irmer D. Stalke G. M. Sheldrick 《无机化学与普通化学杂志》1992,611(5):92-94
Preparation and Crystal Structure of [(Me3SiCH2)2InP(H)Ad]2 Reaction of (Me3SiCH2)3 In with AdPH2 (Ad = adamantyl) in the presence of AgNO3 leads to [(Me3SiCH2)2InP(H)Ad]2 1 in 30% yield. The crystal structure of 1 is discussed. 相似文献
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Reactions of R4Sb2 (R = Me, Et) with (Me3SiCH2)3M (M = Ga, In) and Crystal Structures of [(Me3SiCH2)2InSbMe2]3 and [(Me3SiCH2)2GaOSbEt2]2 The reaction of (Me3SiCH2)3In with Me2SbSbMe2 gives [(Me3SiCH2)2InSbMe2]3 ( 1 ) and Me3SiCH2SbMe2. [(Me3SiCH2)2GaOSbEt2]2 ( 2 ) is formed by the reaction of (Me3SiCH2)3Ga with Et2SbSbEt2 and oxygen. The syntheses and the crystal structures of 1 and 2 are reported. 相似文献
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The dinuclear molecule of [(Me3SiCH2)Cl2Sn]2(CH2)3 adopts an extended conformation and features distorted tetrahedral tin centres, with the greatest distortion manifested in the C? Sn? C angles of approximately 128 °. The distortions are ascribed to the influence of intermolecular Sn···Cl interactions. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
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Richard L. Wells Edward E. Foos Ryan A. Baldwin Arnold L. Rheingold Glenn P. A. Yap 《Heteroatom Chemistry》1998,9(2):147-150
The dimeric gallium-phosphorus compound [(Me3Si-CH2)2GaP(SiMe3)2]2 ( 1 ) was prepared from the 1:1 mole ratio lithium-halide elimination reaction of (Me3SiCH2)2GaP(SiMe3)2Ga(CH2SiMe3)2Cl with LiP-(SiMe3)2 in benzene solution and has been characterized through multinuclear solution NMR, partial elemental analysis, and single-crystal X-ray analysis. Compound 1 could not be obtained from the direct reactions of (Me3SiCH2)2GaCl with P(SiMe3)3 or LiP(SiMe3)2. © 1998 John Wiley & Sons, Inc. Heteroatom Chem 9:147–150, 1998 相似文献
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Metathesis between either SrI2 or BaI2 and 2 equiv of {(Me3Si)2(MeOMe2Si)C}K in THF yields the novel heavier alkali metal dialkyls {(Me3Si)2(MeOMe2Si)C}2M(L) [M(L) = Sr(THF) (2), Ba(DME) (3) (DME = 1,2-dimethoxyethane)] after recrystallization. 相似文献
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The compounds [(Me3SiO)8Te2O2] ( 1 ) and [(Me4Si2O2)3Te] ( 2 ) have been prepared in good yields through Bronsted acid‐base reaction of Te(OH)6 with Me3SiNEt2 and Me4Si2(NEt2)2, respectively. They have been characterised by multinuclear NMR spectroscopy and single crystal X‐ray diffraction analyses. The formation of dinuclear 1 is the result of fast intermolecular condensation of two partially silylated orthotelluric acid units during the esterification process. Its structure consists of two edge‐fused TeO6‐octahedra, bearing a four‐membered Te2O2 ring as central motif. In contrast, the main structural feature of chiral 2 is a TeO6 octahedron which is fully silylated by three bidentate 1,1,2,2‐tetramethyldisilanediyl units, resulting in a racemic mixture. The metastability of 2 is remarkable since the Te(+ 6) center usually acts as a strong oxidation reagent toward the Si–Si bond in disilanes. 1 and 2 represent potential starting compounds for molecular TexOy aggregates as hybrid components for new glasses by sol‐gel procedure. 相似文献
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《Journal of organometallic chemistry》1990,399(3):C18-C20
The compounds H2Si[P(SiMe3)2]2 and [H2SiP(SiMe3)2]2 were prepared and characterized by 29Si NMR, 31P NMR, IR and Raman spectroscopy. After thermolysis of these compounds no cyclic silylphosphanes could be detected in the reaction mixture,although this did contain P(SiMe3)3. 相似文献
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ZHONG Gui yun LIU Hua XIE Qing lan * Institute of Elemento organic Chemistry Nankai University Tianjin P. R. China 《高等学校化学研究》2002,18(3):277-279
IntroductionThe drug- molecules are called as silyl- drug ifasilicon atom replaced one carbon atom of theorganic- drugs.Generally,they have low toxicityand pro- long efficiency.Many methods have beendesigned in order to decrease the toxicity oforganotin compounds and organosilicon which hasbeen proved to be effective.Torque[1] is a newacaricide made by America Shell Company,itsmolecular formula is [( Ph Me2 Si CH2 ) 3 Sn]2 O.Tacker[2 ] synthesized the compounds( Ph Me2 Si CH2 ) 3 Sn X[… 相似文献
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Giuliano Longoni Mario Manassero Mirella Sansoni 《Journal of organometallic chemistry》1979,174(2):C41-C44
The interstitial dihydride dianion [Ni12(CO)21H2]2? is readily converted by carbon monoxide (25°C, 1 atm) into a mixture of tetracarbonylnickel and a new colourless hydride carbonyl monoanion, which has been characterized by X-ray diffraction as [Ni2(CO)6H]?. 相似文献
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Key steps of the synthesis of the Lythracaea alkaloid (--)-lasubine(I) are the formation of an enantiopure planar chiral arylaldehyde tricarbonylchromium complex and highly diastereoselective aza-Diels-Alder cycloaddition and intramolecular radical cyclization reactions to afford a quinolizidinone intermediate. Ketone reduction, desilylation, and decomplexation yield the enantiomerically pure product. 相似文献
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[(Me3PN)3SNS(NPMe3)2]Cl2, a Mixed Valenced Phosphorane Iminato Complex of Sulfur The title compound has been prepared from trithiazyl chloride and the silylated phosphaneimine Me3SiNPMe3 in acetonitrile solution, forming red crystals, which were characterized by IR spectroscopy and by a crystal structure determination. Space group P21/c, Z = 4, structure solution with 4250 independent reflections, R = 0.054. Lattice dimensions at 20°C: a = 1077.8, b = 2036.6, c = 1480.5 pm, β = 102.39°. The compound consists of dications [(Me3PN)3SNS(NPMe3)2]2+ and chloride ions. In the cations the sulfur atoms of oxidation number +VI and +IV are connected by an asymmetric, bent nitrido bridge with SN bond lengths of 156.9 and 167.0 pm. 相似文献
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Reaction of bis(diisopropylamino)(methylamino)borane, (NHiPr)2B(NHMe), with 2,4,6‐trichloroborazine (ClBNH)3 affords 2,4,6‐tri[bis(diisopropylamino)boryl(methylamino)]borazine, 2,4,6‐[(NiPr2)2B(Me)N]3B3N3H3, which is the first boryl‐borazine structurally characterized. According to the X‐ray single crystal structure and the chemical shifts of 11B NMR resonances of boron atoms, compared with the aminoborane and borazine analogs, the borazine and boryl π‐systems are not coplanar either in the solid state or in organic solution. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
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G. A. Nifontova O. N. Krasochkat I. P. Lavrent'ev D. D. Makitova L. O. Atovmyan M. L. Khidekel 《Russian Chemical Bulletin》1988,37(2):369-374
Conclusions Oxidation of Au0 in the DMSO-HBr system has given dimethyl sulfide complexes of mono-and trivalent gold, [(Me2S)AuBr] and [(Me2S)AuBr3]. X-ray diffraction examination has shown that in the crystal of the first complex there are chain intermolecular contacts Au...Au (3.22 å), and in the crystal of the second, intermolecular Au...Br contacts which extend the square planar coordination of the gold atoms to distorted bipyramidal.For previous communication, see [1].Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 450–455, February, 1988. 相似文献
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以2[(η5-C5Me5)WS3(CuBr)3]2和diphenyl-2-pyridylphosphine (PPyPh2)在乙腈中反应得到标题化合物[(η5-C5Me5)WS3Cu3Br2(PPyPh2)2], 对该产物进行了元素分析、 IR、 UV-Vis和1H NMR 谱表征, 并测定了晶体结构. 该化合物晶体属三斜晶系, P1空间群, 晶胞参数: a=1.545 9(7) nm, b=1.62 0(1) nm, c=1.018 0(2) nm, α=94.18(3)°, β=97.38(3)°, γ=111.81(4)°, V=2.327(2) nm3, Z=2, Dc=1.84 g*cm-3, F(000)=1 260, μ=57.77 cm-1, 最终偏离因子R=0.029. 此簇合物结构可视为由一个[(η5-C5Me5)WS3]单元和3个Cu组成的开口立方烷, 其中2个Cu是畸变四面体配位, 第3个Cu是近似三角平面配位. W-Cu(1), W-Cu(2) 和W-Cu(3)距离分别为0.270 41(9), 0.273 27(8), 0.267 85(9) nm. 相似文献
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Jing Chu Qi-ying Lv Xiao-hua Xie Wei Li Shuzhong Zhan 《Transition Metal Chemistry》2013,38(8):843-847
The reaction of 1-[(2-bromo)benzene]-3-[(2-carboxymethyl)benzene]triazene and [Pd(CH3CN)4]Cl2 gave a new dinuclear triazenido complex [Pd2L2] 1, which has been characterized by NMR spectra and X-ray crystallography. Electrochemical studies showed that complex 1 is capable of generating hydrogen from acetic acid in CH2Cl2. 相似文献