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 of multiple 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。
2) 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 of hydrogen 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 of hydrogen 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 by hydrogen 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 the Hydrogen-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
补充资料: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。
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。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条