您要查找的是不是：
- Density Functional Theory, Cytosine, Tautomerism. 密度泛函理论;胞嘧啶;
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- Keto-enol tautomerism is the most common tautomery phenomenon.Keto -enol themselves are the real chemical substance. 酮及烯醇互变是互变作用最普通的现象,它们都是真实的化学实体。
- "Constitutional isomers that can be readily converted from one to another are called tautomers (see tautomerism). 彼此间很容易相互转换的组成异构体称为互变异构体现象。
- Studies of the UV-VIS spectra of them in several acid solutions indicate the quinone-ammoni-um tautomerism. 在一定的酸性介质中，这类冠醚存在着铵琨互变异构，测定了它们在不同介质中的紫外-可见光谱，并对最大吸收峰进行归属。
- An improved method for synthesis of 5 - nitroso - 2,4,6 - triaminopyrimidine by using dimethyl sulfox-ide and xylene as mixed solvents for azeotropic dewatering was developed. 研究了一种合成5-亚硝基-2,4,6-三氨基嘧啶的改进方法,该法采用二甲基亚砜和二甲苯作为混合溶剂共沸脱水,克服了单一极性溶剂脱水困难的缺点。
- Semiempirical MNDO ealculations were performed in order to study theformhydroxamic acid-formhydroximic acid tautomerism. 应用半经验MNDO方法研究了甲异羟肟酸与甲羟肟酸的互变异构平衡。
- When the tautomer DTP(1,3,7) reacts with the electrophilic carcinogen BPDE,the atomic S10 of DTP(1,3,7) superiorly attacks the BPDE. 二硫酮DTP(1;3;7)在水相中与致癌物BPDE进行亲核取代反应时;二硫酮DTP(1;3;7)中的S10原子优先进攻亲电试剂BPDE.
- As R&D the new pesticide, we designed and synthesized the Oximino Carbamate compounds. The synthetic method and the bio-activity of this kind of compounds were reported in this paper. 在创制新农药的过程中,我们研制并合成了一类氨基甲酸肟酯类化合物,本文对这类化合物的合成研究工作及其生物活性作了介绍。
- Instead, ESIPT takes place, forming a proton transfer tautomer, in which the central nitrogen atom acts as the secondary alkyl amine. 非光缓解途经可分为物理性质的由光能转为热能散失在系统中，或是化学性质的由光能转为化学能进行化学反应；
- Tautomerism: Existence of two or more chemical compounds that have the same chemical composition But different structures (isomers) and that convert easily from one to another. 互变异构体现象:两种或多种化合物(同分异构体),具有相同的化学组成,但结构不同,很容易从一种转换到另一种。
- This paper introduced a improved process to synthesize pendimethalin by nitration,O-alkylation and condensation from3,4-xylenol.This process avoided the formation of the toxic nitroso compounds. 本文介绍了以3,4-二甲基苯酚为原料,经过硝化反应、氧烷化反应、缩合反应制备除草剂二甲戊灵的一种新的制备工艺,该工艺避免了有毒的亚硝基化合物的形成。
- MNDO method and GAMESS90 programs have been employed respectively to investigate limited reaction pathways and to optimize structure of transition states for the keto-enol tautomerism. 采用MNDO方法和GAMESS90程序,对酮-烯醇互变异构进行了研究,得到了互变异构的极小能量反应途径及其过渡态的几何构型。
- Keywords cobalt;Nitroso R salt;oscillopolarography; 钴离子;亚硝基红盐;极谱法;
- Keywords Nitroso R salt Cobalt Spectrophotometer; 亚硝基红;钴;吸光光度法;
- nitroso process (for sulfuric acid manufacture) [化] 亚硝基法(制硫酸)
- Tautomerism is the common existence in Organic Chemistry. In this paper, the process of Tautomerizing relationship is further analyzed. 互变异构现象在有机化学中普遍存在,本文就互变异构关系中的历程作一浅析。
- DFT Study on Tautomerism of Gaseous Cytosine 密度泛函方法研究气相胞嘧啶的互变异构化
- carbodiimide cyanamide tautomerism 碳二亚胺-氨基氰互变异构体
- Study on tautomer of ethyl acetoacetate by UV 乙酰乙酸乙酯互变异构体的紫外光谱研究
