Lewis base
英 [ˈlu(ː)ɪs beɪs]
美 [ˈluɪs beɪs]
路易斯碱
双语例句
- Asymmetric Reduction of N-acyl Enamines Catalyzed by Chiral Lewis Base
手性路易斯碱催化N-酰基烯胺不对称还原 - The Lewis base properties of Al_2O_3 and SiO_2 have been studied with an infrared spectroscopic approach by using boric acid trimethyl ester ( BATE) as probe molecule.
以硼酸三甲酯为探针分子对金属氧化物Al2O3和非金属氧化物SiO2的表面路易斯碱性进行了红外光谱研究。 - An Infrared Spectroscopic Quantitative Study on the Lewis Base Property of Al_2O_3 with Boric Acid Trimethyl Ester
用硼酸三甲酯对Al2O3路易斯碱性进行红外光谱定量研究 - ~ ( 27) Al NMR Study on the Solvation of Anhydrous AlCl_3 in Various Lewis Base Solutions
用~（27）AlNMR研究无水AlCl3在Lewis碱中的溶剂化作用 - The solvation of anhydrous AlCl_3 in various Lewis base solvents has been investigated by~ ( 27) Al NMR spectroscopy.
用~（27）AlNMR对无水AlCl3与30多种Lewis碱溶剂的相互作用进行了较系统的研究。 - Study on the synthesis of PEKK in the presence of compound catalyst of Lewis acid-Lewis base
Lewis酸&Lewis碱复合催化剂催化合成聚醚酮酮的研究 - In the leaves the ration of the Lewis acid and the Lewis base is ca. 0.016.
柿树叶中Lewis酸和Lewis碱之比（酸碱比）约为0.016。 - Application of Lewis Base and its Transition Energy ( E_T) in anionic polym, of conjugated dienes.
路易氏碱及其过渡态能ET在共轭二烯烃的阴离子聚合中的应用。 - Analyzed from surface components of substrate and adhesion, there are some active groups between interfaces, which can form hydrogen bonds and Lewis acid-base interactions.
从基材和粘接剂的表面组成来看，界面含有一些极性基团，可以形成Lewis酸碱和氢键作用，但由于这些基团数量有限，它们形成共价键量子化的条件受到局限； - The physical meaning of the parameters A and B was then interpreted, which expressed the interaction magnitude of molecular force between Lewis acid and Lewis base.
B两指数的物理意义，并表征其相互作用的lewis酸、碱间的分子作用力的大小。 - Recent progress in the applications of non-enzymatic system about Lewis acid and base to ( dynamic) kinetic resolution reactions of racemes is reviewed.
本文讨论了路易斯酸及路易斯碱催化体系在外消旋体（动态）动力学拆分反应中应用的最新进展。 - The hard and soft acid base rule, classification, scaling of hard and soft acid and the theory were explained According to the rule elements are classifed into Lewis hard-medial-soft acids ( bases) in body.
阐述了SHAB规则、分类、酸碱软硬度的定量标度和理论解释。根据SHAB规则把体内微量元素分为Lewis硬酸、软酸与交界酸和硬碱、软碱与交界碱。 - Transesterification of Dimethyl Carbonate and Phenol with Lewis Acid and Base Catalysts
Lewis酸、碱催化碳酸二甲酯与苯酚酯交换反应 - The results showed that MgO has a certain strength of Lewis base, and the adsorption of BATE on MgO is monomolecular chemical adsorption.
结果表明MgO有一定的路易斯碱强度，与硼酸三甲酯之间的吸附是单分子层化学吸附。 - In aromatic weak acid& weak base mixture systems, one adsorbate with Lewis acid functional group and another with basic group lead the intermolecular interactions more complicated, and the adsorption behaviors and mechanism onto adsorbent resin are not thoroughly understood.
对于芳香族弱酸-弱碱混合体系，一种吸附质含有弱Lewis酸性官能团、另一种含有弱Lewis碱性官能团，分子间作用复杂，在树脂上的吸附行为及其机理目前还缺乏足够的认识与了解。 - The theoretical discovery of the role of DMF and MeOH in the hydrogen shift process suggests that a transition metal-catalyzed reaction involving a similar hydrogen shift step can be accelerated when solvent with the nature of Lewis base is used.
我们的理论计算表示具有路易斯碱性质的溶剂（如DMF和MeOH）在过渡金属催化反应中可以促进氢转移过程的进行。 - This means that in catalytic reactions, solvents with the nature of lewis base and transition metallic catalysts can be combined into a new catalytic system to effectively promote reaction.
这就意味着具有路易斯碱性质的溶剂与过渡金属催化剂在反应中可以组成新的催化剂系，它可以更有效地促进反应的进行。 - This chapter mainly focused the synthesis of propargylic alcohols in many methods including strong base reagents and organic reagent improved by the strong base, the terminal alkyne, and Lewis acid or base.
此章中我们主要介绍了通过强碱试剂、由强碱改进的有机试剂、末端炔烃衍生物和路易斯酸/碱组合等方法来合成炔丙醇。 - This catalyst combined the Lewis acid metal center and the Lewis base center, without any co-catalysts, any solvents, was applied for the synthesis of cyclic carbonates.
该催化剂同时具有Lewis酸金属中心以及Lewis碱中心，在无任何助催化剂，以及无任何溶剂的情况下，合成环碳酸酯。 - The degree of branch structure is related to the ion-pair, which is the substituent group connected to N atom in alkyne, and the steric effect of the Lewis Base. The branch structure can be restrained by controlling the chain transfer reaction.
其支化程度与离子对的结构，即炔酰胺上N原子相连取代基和路易斯碱的位阻大小有关，可通过对链转移反应的抑制控制支化程度。 - The surfactant Lewis base containing 6 sodium carboxylate groups was used to catalyze Henry reaction in water with the yield up to 96%, and the catalyst could easily be recycled and reused for more than 3 times.
另外，所合成的多支长碳链脂肪胺的六羧酸钠作为具表面活性的Lewis碱，可在水相催化Henry反应，产率高达96%，催化剂亦可回收重复使用3次以上。