异构体

The results showed that the ligand DBM was coordinated to the metal ions acting as the enol form isomer, the main absorption peaks of the ligands in IR, UV spectra were bathochromic due to the influence of chelating effect.

研究表明：配体DBM以烯醇式异构体与金属离子螯合，受螯合效应的影响，配体的IR、UV特徵吸收峰均发生红移，染料在540nm~400nm近紫外区有强烈的电子吸收。

In the case of ethane, then , there exist three conformational isomers or conformers, which are degenerate because they are congruent , have the same energy, and are, in all respects, indistinguishable.

在乙烷的话，那么，我们有三种异构体或构构，这是堕落，因为他们是一致的，具有相同的能量，并在所有方面，没有什么区别。

Nitro derivatives of phenols, the pyrolysis initial reaction is an isomerization reaction It meansthe O-H bond in hydroxide rupture, then the Hydrogen atom transfer to the Oxygen atom in nitryl to form isomer.

苯酚的硝基衍生物的热解引发反应为异构化反应——酚羟基中的氢氧键断裂，氢原子迁移到邻位硝基(-NO_2)中的氧原子上，形成新的异构体化合物。

After prolonged heating 15h, 120° of the origina lly isolated stereoisomer B (melting C point mp: 157° Diels and Alder obtained two new stereoisomers E (mp: 153° and F C), C (mp: 163° Equilibration of B with a catalytic amount of a strong base at 25° ga ve a C).

在比原始分离异构体 B (熔点： 157°C)的方法延长加热时间之后(15h， 120°C)， Diels and Alder 获得了两个新的异构体 E(熔点：153°C)和 F(熔点：163°C)。

In these solvents there is an equilibrium for 2-(2-mercaptophenyl)benzoxazole in the ground state between E1 and K, and the equilibrium shifts toward the tautomer K as the polarity of the solvent increases.

在溶液中，随着溶剂极性的增强，醇式异构体E1与K之间的反应平衡向K方向移动，在非极性溶剂环己烷中， E1为优势构型，而在强极性水溶液中， K为优势构型。

The present calculations predict that thioacetic acid mainly exists as a CH3CSH tautomer, and both tautomers predominately adopt syn conformations, which reproduces the experimental observations.

本文计算预测硫代乙酸主要以CH3CSH的形式存在，两种异构体均以顺式构象为优势构象。

In this paper,- and (5)-2,2'-diethynyl-1,1'-binaphthyl with highly stable chiral configurations were employed as structural templates, and a new type of helical cyclophane compounds-3 and-3 were synthesized in enantiopure form by the introduction of benzyl sulfone through Sonogashira coupling reaction, followed by the treatment of disulfone with lithium diisopropylamide.

基於2，2'-二取代的联萘衍生物在手性构型上高度稳定的特点，分别从光学活性的-和-2，2'-二乙炔基-1，1'-联萘结构模板出发，通过Sonogashira偶连反应导入苄基碸，然后用二异丙基氨基锂处理制得的联萘二碸成功地合成了一种新的螺旋环芳分子－对映异构体-3和-3。

For Mn5 cluster, the most stable structure is trigonal bipyramid with spin magnetism of 3 μ, and Mn6 cluster has the most stable structure of ferromagnetic octahedron with spin magnetic moment of 16μ.

Mn6的最稳定构型为铁磁性的畸变八面体（磁矩为16，C(下标 4v)）。各种异构体虽然多重度不同，但每个原子的自旋极化度均在3以上。

In our results, we found four proteins have isoforms; these proteins are peptidyl-prolyl cis-trans isomerase A, prohibitin, enolase 1, myeloperoxidase precursor.

同时，我们发现肽基辅胺酸顺反异构酶（peptidyl-prolyl cis-trans isomerase A）、抑制素、烯醇酶（enolase 1）、过氧化骨髓酶有异构体的产生。

We selected different eluents according to different diasteroisomers and gained the singles of the diasteroisomers by the column chromatography.

经过简单易行的薄层色谱分析法选择了不同的洗脱剂，然后通过柱色谱分离，得到了多对非对映异构体的α-体和β-体。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。