活性中间体,active intermediate
1)active intermediate活性中间体
1.Aluminosilicateactive intermediate was synthesized by heating fly coal ash with sodium hydroxide at 550 °C and by hydrolysis, study on dye decolourization.采用粉煤灰与 Na OH煅烧、水解合成铝硅酸盐活性中间体对有机染料进行脱色研究。
2.The stability of theactive intermediates, bend length of monoene and conjugated diene were discussed.过从反应活性中间体的稳定性以及共价键的键长，从理论上说明共轭二烯比单烯易亲电加成。
3.The mechanism was mainly attributed to the formation of the cyclic nitrogenated fullereneactive intermediate C 60 NH from the fragmentation of aminatied fullerene derivatives by the UV laser desorption ionization,the C 60 NH is very easy to aggregate with C 60 and itself to form C 84 N 2,C 120 NH,C 180 N 2H 2,C 240 N .首次发现Ｃ６０的胺基加合物在质谱仪上的紫外激光解吸电离作用下，由Ｃ６０的胺基加合物裂解生成了一种含氮原子的Ｃ６０活性中间体（Ｃ６０ＮＨ），这种活性中间体极易与Ｃ６０及其本身发生聚合及裂解，从而生成了一系列的含氮原子富勒烯聚合离子，这样可给合成以氮原子键连的富勒烯聚合物开辟一条途经。
英文短句/例句
1.On Relationship Between the Stabilityof Activated Intermediate in Organic ChemicalReaction and the Activity of Reaction;有机化学活性中间体稳定性与反应活性的关系
2.THE TEACHING STUDY OF REACTIVE INTER-MEDIATE-CARBONIUMIONS;有机活性中间体—碳正离子的教学研究
3.Many calculations of the properties of reactive intermediates and transition states have been performed.活性中间体和过渡状态性质的许多计算被实现。
4.The first of the reactive intermediates to be considered is known as a "carbocation".要研究的第一种活性中间体叫做“正碳离子。”
5.The first of the reactive intermediates to be considered is known as a "carboniumion".要研究的第一种活性中间体叫做“正碳离子”。
6.The Research on Kinetic Process of Complicated Reaction with Reactive Intermediates;具有活性中间体的复杂反应体系的动力学过程解析
7.Many calculations of the properties of reactive intermediates and transition states have also been performed.活性中间体和过渡状态性质的许多计算机也可能被实现。
8.Synthesis of Several Optically Active Chiral Intermediates;若干有光学活性的手性中间体的合成
9.The public life of “Intersubjectivity” theory sight;“主体间性”理论视域中的公共生活
10.Spectrophotometric Determination of Micro Amount of Zinc(Ⅱ) With m-Nitrophenylfluorone in the Presence of CTMAB;间硝基苯基荧光酮在表面活性剂体系中测定锌
11.Synthesis of intermediate for Gemini surfactant using waste polyester利用废弃聚酯制备Gemini表面活性剂中间体
12.A study on the folk sports activities for the feasible adoption in college physical education;民间体育活动在高校体育教学中应用的可行性研究
13.The Jiangxi Folk Traditional Sports Integrate the Middle School Physical Education Teaching the Feasibility Study江西民间传统体育活动融入中学体育课教学的可行性研究
14.In this case there are no rigid tensions between the poles, there is less dynamism, and more flexibility.此例中，星体之间不存在僵硬的紧迫感，较小的力度，稍多一点灵活性。
15.Study on the Synthesis and Density Functional Theory of Cephalosporin Antibiotics Intermediate-AE-active Ester;头孢菌素类抗生素中间体AE-活性酯的合成与密度泛函理论研究
16.Feasible Study on Setting-up of Traditional Minority Sports during Class Break in Rural Primary and Middle School农村中小学课间操开设民族传统体育活动的可行性探讨
17.Synthesis and Technological Investigation of Bi-activity Liquid Crystalline Intermediate- -4-(ω)-Hydroxyethoxybenzoic Acid双活性液晶中间体4-(ω)-羟乙氧基苯甲酸的合成及其工艺研究
18.From the perspective of inter-subjectivity:the key element relationof the teaching activities;从“主体间性”看教学活动的要素关系
相关短句/例句
active intermediates活性中间体
1.The results showed that removal efficiency depended mainlyon the quantity of theactive intermediates for PCS.实验结果表明，有机污染物去除效率的关键决定于体系产生活性中间体的量。
3)Organic activity intermediates有机活性中间体
4)reactive nitrogen intermediates活性氮中间体
5)Reactive oxygen intermediates(ROI)活性氧中间体(ROI)
6)optically active intermediates光学活性中间体
1.The industrial synthesis of certainoptically active intermediates,including chiral amino acids,carboxylic acids,alcohols,amines and epoxides is reviewed.重点叙述了某些光学活性中间体的工业合成技术,包括手性氨基酸、手性羧酸、手性醇、手性胺和手性环氧化物。
延伸阅读
活性中间体有机反应中出现的活泼反应中间体。有机反应一般涉及共价键的断裂和形成两个历程，其方式有同时发生协同反应和分阶段进行两种。多数有机反应是分阶段进行的，过程中出现的活泼反应中间体（A和B），再进一步反应生成最终的稳定产物(A-C)：一步反应：C+A-B→[C...A...B]→C-A+B阶段反应：A-B→[A...B]→A+BA+C→[A...C]→C-A协同反应是一步完成的,没有反应中间体,所以只经历一个过渡状态（图1）。而阶段反应（图2），从反应物到产物，要经过两个高点和一个低点，这个低点就代表活性中间体。其能量较反应物和产物均高得多，所以很活泼，但是相对于两个高点（过渡状态1和2）能量又较低，因而能短暂存在。中间体的能量势谷（即图中最低点）越低，就越稳定，寿命也越长。迄今已发现多种各具特色的反应活性中间体。主要有:正碳离子(R+)、负碳离子(R-)、自由基(R·)、卡宾(R2C:),还有复合型中间体,如正离子基R抆和负离子基R刔（见离子基）等物种。中间体极其活泼,寿命很短,难以用常规方法加以分离和提纯。鉴于它们的结构特征，可以在特殊条件（低温或捕集、络合等）下使用现代光谱学及其他化学或物理学的手段来鉴别其结构和反应性能。参考书目W.J.le Noble, Highlights of Organic Chemistry,Marcel Dekker,New York,1974.
