多氢键,multiple hydrogen bonds
1)multiple hydrogen bonds多氢键
1.Considering the importance of the hydrogen bonding interactions between thiourea moiety and substrates in amine-thiourea catalyzed asymmetric reactions,we designed and synthesized a novel class of amine-thiourea catalysts through application of the strategy ofmultiple hydrogen bonds synergistic activation for the first time.基于对现有的文献中关于双官能团氨基-硫脲类有机小分子催化剂分子的结构分析,我们将"多氢键给体协同活化"策略成功应用于合成一类新型含多个氢键给体、具有多个手性中心、而且其空间位阻和电子效应等精细结构具有可调控性的手性氨基-硫脲类双官能团有机小分子催化剂Ⅰ和Ⅱ。
英文短句/例句
1.Design,synthesis and application of multiple-hydrogen-bonding-donor amine-thioureas in asymmetric organocatalysis含多氢键给体的氨基-硫脲类有机小分子催化剂的设计、合成及应用
2.the process of forming a ring by forming one or more hydrogen bonds.通过形成一个或多个氢键而形成一个环的过程。
3.Multiphoton Ionization Mass Spectrum of Ammonia-alcohol Hydrogen-bonded Cluster;氨与醇类二元氢键团簇多光子电离质谱研究
4.Theoretical Study of Multifurcated Bent Hydrogen Bonds and Intermolecular Interaction;多接触弯曲氢键及分子间相互作用的理论研究
5.Dihydrogen Bonds and Traditional H-Bonds of B_3N_3H_6 with HF,HCl or H_2OB_3N_3H_6与HF、HCl和H_2O形成的氢键和双氢键
6.Cellulose is insoluble because, in order for it to dissolve, most of these hydrogen bonds would have to be released at once.纤维素是不可溶的,因为要想使它溶解,大多数氢键不得不同时断开。
7.Theoretical Study of Hydrogen Bonds and Dihydrongen Bonds between π-conjugate Hetero-cyclic Molecules and Some Proton Donors杂环芳香体系分子间氢键和双氢键的理论研究
8.Theoretical Study on Dihydrogen Bonds and H-Bonds of B_3N_3H_6 with H_xCF_(4-x)(x=1-3)B_3N_3H_6与氟代甲烷形成的氢键和双氢键的理论研究
9.Construction of Supramolecular Networks Based on Coordination and Hydrogen Bonds;基于配位键和氢键的超分子网络结构
10.Preparation of Polypyrrole/Benzenesulfonic Functionalized Multi-Walled Carbon Nanotubes Induced by Hydrogen Bonding and Their Electrochemical Behavior氢键诱导的聚吡咯/苯磺酸功能化多壁碳纳米管的制备及其电化学行为
11.AN AB INITIO MO STUDY OF THE HYDROGEN BOND COMPLEX BETWEEN CYCLOBUTANE AND HYDROGEN FLUORIDE环丁烷与氟化氢形成氢键络合物的从头算研究
12.The Function of Hydrogen Bond in Polymer BlendsⅠ.Characters and Affecting Factors of Hydrogen Bond高分子共混物中氢键的作用Ⅰ.氢键的特征描述以及影响因素
13.Theoretical Study of Halogen Bonding-A World Parallel to Hydrogen Bonding;与氢键平行的分子间相互作用—卤键的理论研究
14.Layer-by-Layer Assembly of Polymers via Hydrogen Bonding or Halogen Bonding: Effect of Solvents;基于卤键或氢键的聚合物层状组装：溶剂影响
15.The Influence of Hydrogen Bond on the Raman Spectrum of S=O in DMSO Aqueous Solution;氢键对DMSO水溶液中S=O双键Raman光谱的影响
16.The Bond Energy/bond Length Index ~mZ And Calculation pKa_1 of Inorganic Hydrides;键能/键长指数~mZ及对无机氢化物pKa_1值的预测
17.Study of Nucleophilic Substitution Reaction of C-F Bond on a Benzene Ring under Activation of Hydrogen Bond氢键活化的苯环上C-F键的亲核取代反应研究
18.Structures and Properties of Halogen Bond and Hydrogen Bond Formed between CH_3SH and HOClCH_3SH与HOCl分子间氢键和卤键的结构与性质
相关短句/例句
multifurcated H-bonds多接触氢键
3)multifurcated C–H…Cl~-hydrogen bond多叉C–H…Cl~-氢键
4)Hydrogen bonding氢键
1.The hydrogen bonding structure for the ground state and the lowest excited state of 1,2,3-triazine-water complex;邻-三氮杂苯—水复合物基态与最低激发态氢键结构
2.Study on hydrogen bonding in water-ethanol beverage—hydrogen bonding of beer;醇水饮料中氢键的研究——啤酒的氢键
3.Theoretical Analysis of Intracellular Ice Growth and Molecular Dynamics Simulation of Hydrogen Bonding Characteristics of Cryoprotective Agent Solutions胞内冰生长的理论分析及保护剂溶液氢键特性的MD模拟
5)hydrogen bonds氢键
1.The application of hydrogen bonding recognition in designing and controlling over supramolecular polymers has attracted great attention recently due to the influence ofhydrogen bonds on the thermodynamic properties,microscopic self-assembling,crystallizing and liquid crystallizing behaviors of such polymers.近年来,由于氢键作用对聚合物的热力学性质、微观自组装、结晶及液晶行为的重要影响,氢键识别在超分子聚合物的分子设计与结构控制方面的应用受到广泛关注。
2.Focused on the disruption and regeneration ofhydrogen bonds between amides groups of adjacent nylon 6 chains to prepare high strength and high modulus fiber by ultra high molecular weight nylon 6.为了用超高分子质量尼龙6制备高强高模纤维,对超高分子质量尼龙6分子间的酰胺基氢键的屏蔽和再生进行了研究。
3.The infinite chains are connected byhydrogen bonds involving the coordination water molecular and SO42-.此配合物含有三种分别沿[100]、[010]、[110]方向排列的无限长链,并通过其配位水分子与位于层间位置的SO42-形成氢键而连接成为超分子结构。
6)Hydrogen-bond氢键
1.Ab initio calculation on hydrogen-bond of system of gas hydrate and kinetics inhibitor of acylamide;酰胺类动力学抑制剂在水合物体系中形成氢键从头计算
2.Ab initio Studies on the Structures of theHydrogen-bond Clusters C_5H_ (10)NH(NH_3)_n(n=1—3);六氢吡啶和氨形成的氢键团簇C_5H_(10)NH(NH_3)_n(n=1～3)结构的从头算研究
3.The expression of hydrogen-bond acidity of compounds having hydroxyl or carboxyl;含羟基或羧基化合物的氢键酸度的表达式
延伸阅读
多苯基多亚甲基多异氰酸酯 多苯基多亚甲基多异氰酸酯，简称PAPI，或称粗MDI，浅黄色至褐色粘稠液体．有刺激性气味。相对密度(20℃/20 ℃)1．2，燃点218℃。PAPI实际上是由50％MDI与50％官能度大于2以上的多异氰酸酯组成的混合物。升温时能发生自聚作用。溶于氯苯、邻二氯苯、甲苯等。PAPI的活性低，蒸气压低，只是TDI的百分之一，故毒性很低。 用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
