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insertion reaction
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  插入反应
     Research on the Synthesis of New Silver Cluster Complexes by the Insertion Reaction of CS_2 into Ag──S Bonds(Ⅲ)── Formation and Crystal Structure of a Trinuclear Silver Cluster Complex Ag_3(Pr _3 ̄iC_6H_2S)_3(PPh_3)_3·(CH_3)_2CHOH
     应用CS_2在Ag─S键中的插入反应生成新型Ag原子簇化合物的研究(Ⅲ)──三核银Ag_3(Pr_3~iC_6H_2S)3(PPh_3)_3·(CH_3)_2CHOH的形成与晶体结构
短句来源
     Theoretical Studies on the C—H Bond Insertion Reaction of Carbenes with Ethers(Ⅳ) ——Insertion Reaction of CX_2(X=H, F, Cl) with Benzyl Methyl Ether
     卡宾与醚C—H键插入反应的理论研究(Ⅳ)——CX_2(X=H,F,Cl)与甲基苄基醚C—H键的插入反应
短句来源
     Research on the Sythesis of New Silver Cluster Complexes by the Insertion Reaction of CS_2 into Ag—S Bonds(Ⅳ) Formation and Crystal Structure of a Tetranuclear Silver Cluster Complex (Ph_3P)_4Ag_4Br_4
     应用CS_2在Ag—S键中的插入反应生成新型Ag原子簇化合物的研究——Ⅳ 四核银簇合物(Ph_3P)_4Ag_4Br_4的形成与晶体结构
短句来源
     Theoretical Studies on the C—H Bond Insertion Reaction of Carbenes with Ethers (Ⅲ) Insertion Reaction of CX_2(X=H, F, Cl) with Ethyl Methyl Ether
     卡宾与醚C—H键插入反应的理论研究(Ⅲ)CX_2(X=H,F,Cl)与甲乙醚C—H键插入反应
短句来源
     Thus, the reaction constitutes a novel insertion reaction of CS_2 into Ag—S bond.
     发现了一个CS_2在Ag—S键中的插入反应
短句来源
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  嵌入反应
     Synthesis of LiCu0.5Mn1.5O4 and Its Li+Extraction/Insertion Reaction in Aqueous Solution
     尖晶石构造LiCu_(0.5)Mn_(1.5)O_4的合成及其在水溶液中对Li+的抽出/嵌入反应
短句来源
  插入反应的
     Insertion Reaction of CS_2 into Cu-S Bonds——Ⅲ. Preparation and Crystal Structure of [Cu (S_2CSC_6H_2Bu_3~t-2, 4, 6)] 4 4C_2H_5OH
     CS_2在Cu—S键中的插入反应的研究——Ⅲ.[Cu(S_2CSC_6H_2Bu_3~t-2,4,6)]_4·4C_2H_5OH的合成与晶体结构
短句来源
     Insertion Reaction of CS_2 into Ag—S Bond Synthesis and Crystal Structure of (PPh_3) 2_Ag (S_2CSBu~t)
     CS_2在Ag—S键中的插入反应的研究(PPh_3)_2Ag(S_2CSBu~t)的合成与晶体结构
短句来源
     Theoretical Studies on the C-H Bond Insertion Reaction of CX_2(X=H,F,Cl) with Methyl Isopropyl Ether
     CX_2(X=H,F,Cl)与甲基异丙基醚C-H键插入反应的理论研究
短句来源
     Theoretical Studies on the C—H Bond Insertion Reaction of Carbenes with Ethers(Ⅳ) ——Insertion Reaction of CX_2(X=H, F, Cl) with Benzyl Methyl Ether
     卡宾与醚C—H键插入反应的理论研究(Ⅳ)——CX_2(X=H,F,Cl)与甲基苄基醚C—H键的插入反应
短句来源
     Theoretical Studies on the C—H Bond Insertion Reaction of Carbenes with Ethers (Ⅲ) Insertion Reaction of CX_2(X=H, F, Cl) with Ethyl Methyl Ether
     卡宾与醚C—H键插入反应的理论研究(Ⅲ)CX_2(X=H,F,Cl)与甲乙醚C—H键插入反应
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  “insertion reaction”译为未确定词的双语例句
     Activation of C-H Bond and Insertion Reaction of CO, CO_2 into Ir-C Bond Promoted by [Ir(COD) (diphos)]Cl Complexes
     [Ir(COD)(diphos)]Cl配合物活化sp~3C-H键及其促进CO、CO_2插入Ir-C键反应性能的研究
短句来源
     Theoretical Studies on the Insertion Reaction of Silylenoid H_2SiNaF with R—H(R=F, OH, NH_2, CH_3)
     钠氟类硅烯插入R_H键(R=F,OH,NH_2,CH_3)反应的理论研究
短句来源
     Thermodynamic analysis and experimental research on Li~+ insertion reaction of Al
     Li~+嵌Al反应的热力学分析及实验研究
短句来源
     1. Orthorhombic molybdenum trioxide (α-MoO_3) exhibits a unique layered structure, whose host lattice is suitable for Li~+ insertion reaction.
     1.正交相三氧化钼(α-MoO_3)具有独特的层状结构,特别适合锂离子的插入和脱出。
短句来源
     The insertion reaction of silylenoid H 2SiNaF with RH(R=F,OH,NH 2,CH 3) was studied at B3LYP/6-31G* level by using density functional theory.
     用密度泛函方法研究了钠氟类硅烯插入 R_ H键 ( R=F,OH,NH2 ,CH3)的反应机理 .
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  insertion reaction
All these effects require introduction of a special kinetic mechanism which postulates an unusually low activity of growing polymer chains containing one ethylene unit, the Ti-C2H5 group, in the ethylene insertion reaction into the Ti-C bond.
      
The low value of the C-P-C angle, 84.2(2)°, reflects the steric strain around the phosphorus bridge and may be responsible for the reactivity of esters and amides derived from1 in the O-insertion reaction with m-chloro-perbenzoic acid.
      
In the case of 1-(o-tolyl)-5-phenyltetrazole an alternative pathway is observed, involving cyclization of the nitrene intermediate at the methyl group (an insertion reaction into a C-H bond) to form dihydroquinazoline derivatives.
      
No specific influence on the CO insertion reaction could be obtained.
      
When the insertion reaction to the thylakoids was performed at 10 °C, followed by their separation into stromal and granal lamellae, the labelled pLHCP was localized in the stromal ones.
      
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Product distribution of C6 and C7 alkanes reacted on Pt/SiO2, Pt/Al2O3 catalysts was examined in detail by the gas chromatography with continuous flow and pulse techniques and mass spectronietric analysis. The skeletal isomerization to the formation of gem isomers was found to take place definitely under mild reaction condition and this was consistent neither with the bond shift nor with cyclic mechanism. A new mechanism involving a "cyclopropanoid" intermediate which gives satisfactory explanations for the...

Product distribution of C6 and C7 alkanes reacted on Pt/SiO2, Pt/Al2O3 catalysts was examined in detail by the gas chromatography with continuous flow and pulse techniques and mass spectronietric analysis. The skeletal isomerization to the formation of gem isomers was found to take place definitely under mild reaction condition and this was consistent neither with the bond shift nor with cyclic mechanism. A new mechanism involving a "cyclopropanoid" intermediate which gives satisfactory explanations for the main distribution pattern of reaction products as well as for the formation of gem isomers is proposed. According to the "cyclopropanoid" mechanism, the dehydrogenative adsorption of parent alkane molecules at α,γ position and formation of a trimethylene adsorbed state were considered as the precursory step for the rearrangement of carbon skeleton.It was further assumed that surface reaction of rearrangement of trimethylene adsorbed state was resemble in nature with the chemistry of insertion reaction of metallocyclobutane. With this assumption, the relative easiness of formation of various isomers from C6 and C7 alkanes was predicted to be parallel with the relative stability of the corresponding substituted metal lo-cyclobutanes. The distribution of isomerization products was in good accordance with the prediction. The orbital interaction of the trimethylene adsorbed state and its symmetry behavior in rearrangement reaction were discussed to provide some theoretical confidences for the conceptions concerned with the new mechanism.

应用微型反应-色谱技术(稳态流动技术及脉冲技术)研究了C_6和C_7异构化反应产物分布的特点,提出了烷烃在铂催化剂上异构化反应的类三元环新机理,它能很好地说明产物分布,特别是关于季碳异构体的生成。根据类三元环机理,烃分子首先在间位碳原子上各脱掉一个H原子,形成同铂原子以a,γ相连的三次甲基吸附态,它近似于铂环丁烷,异构化反应是由于铂环丁烷重排。可以按铂环丁烷的取代基位置与稳定性的关系对各种三次甲基吸附态的生成难易作比较,推测异构产物分布。实验结果与预测结果相符合。为了说明类三元环机理的理论合理性,对三次甲基吸附态的轨道相互作用和重排反应的对称性进行了初步讨论。

More than one hundred hydrocarbons in the C4-C10 range from straight run gasoline are separated and identified on highly efficient quartz capillary column coated with OV-10). Kovats indices are calculated at 50???CCCCCCCC and 70???CCCCCCC.Methylene insertion reaction is used for most of the peak identification. The reactions with aro-matics and secondary addition of methylene, group are studied. Factors affecting the accuracy of the index determination, such as column temperature, column efficiency,...

More than one hundred hydrocarbons in the C4-C10 range from straight run gasoline are separated and identified on highly efficient quartz capillary column coated with OV-10). Kovats indices are calculated at 50???CCCCCCCC and 70???CCCCCCC.Methylene insertion reaction is used for most of the peak identification. The reactions with aro-matics and secondary addition of methylene, group are studied. Factors affecting the accuracy of the index determination, such as column temperature, column efficiency, dead time measurement, etc. are discussed. Correlation between the Kovats indices and molecular structure are also demonstrated.

使用高效石英毛细管柱,测定了直馏汽油中C_4~C_9烃范围内一百多种链烷、环烷、芳烃在OV—101固定相上及50℃、70℃两个温度下的保留指数。研究了次甲基插入反应中芳烃次甲基反应产物及二次次甲基插入反应在色谱定性中的应用。讨论了影响保留指数重复性的主要因素如死时间测量、温度、柱效率、柱类型等。对烃分子结构与保留指数进行了关联。

Geometrical conditions were the first time suggested and analyzed in study of reaction mechanism. By assuming: (1) SAF (dynamic)=SAF (static) for reaction substrates, (2) gaps between reaction substrates, Which are normally hard and unpenetrate, keep almost non-negative during the reaction process, (3) activation energy for bond migration around the unit sphere surface is considerably lower than that needed in the bond breakage, a dynamic cone packing model approach was thus designed which describes quantitatively...

Geometrical conditions were the first time suggested and analyzed in study of reaction mechanism. By assuming: (1) SAF (dynamic)=SAF (static) for reaction substrates, (2) gaps between reaction substrates, Which are normally hard and unpenetrate, keep almost non-negative during the reaction process, (3) activation energy for bond migration around the unit sphere surface is considerably lower than that needed in the bond breakage, a dynamic cone packing model approach was thus designed which describes quantitatively the relative positions and gaps between each ligands during the reaction process. The model can also be used to calculate the maximum empty space for incoming ligands and for reaction intermediate. Reaction routes which leads to large negative gaps between inert ligands simply imply high reaction barriers and they are thus unfavourable. Lewis base association and dissociation, metal-carbon σ bond thermolysis and its CO insertion reaction was briefly discussed using U(C_5H_5)_3X (X=NCS~-, Cl~-and R~-) as examples.

本文首次提出了化学反应过程中几何可能性的定量研究。在下列条件下:(1)反应过程中,惰性配位体的键长,立体角系数等参数保持不变;(2)惰性配位体的压缩性很小;(3)在不压缩其它配位体的条件下,某一配位体在配位球面漂移所需的活化能低于这一配位体所形成的化学键断裂时所需的相应能量。我们提出动态堆积模型。以此来模拟反应过程中各个配位体间的相对位置和运动、配位体之间间隙的大小与受压缩的程度,并计算在反应中间过程中能够容纳新的配位体的最大空缺。考虑到使惰性配位体压缩将产生很大的空间势垒,以UCp_3X为例说明了Lewis碱的配合与解离,金属-碳σ键的热分解以及一氧化碳插入反应的可能性。

 
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