substituents

substituents

美 　英

  • n.代替者；【化】取代基

詞形變化

復數：substituents  

英漢解釋

n.
1.
代替者,取代者;【化】取代基

英英解釋

n.

例句

It follow therefore that the steric blocking effects of substituents are reflected in adverse kinetic, rather than thermodynamic factors.

由此可以看出，取代基的主本阻礙反應，是反映在違背動力學因素而不是熱力學因素。

Their chemical and physical properties can be tailored by judicious selection of cation, anion, and substituents.

通過選擇合適的陽離子、陰離子和配體，可以調變離子液體的化學、物理性能。

The method can synthesize paraquat derivatives containing different alkyl substituents by changing the type of ethanol.

該方法由于可以通過改變醇的種類，合成出含不同烷基取代基的百草枯衍生物。

The compounds with bulky substituents on N-atom preferably exist in keto form on the same condition of determination.

當氮原子上帶有體積較大的取代基時，在相同的條件下，化合物更容易以雙酮式構型存在。

Enols can be stable or even isolable by beating special substituents or in proper environments.

烯醇受環境因素和取代基的影響在一定條件下可以穩定存在。

However, the steric effects related to the substituents of PS and EVA cancels this catalytic behaviour.

然而，有關的PS和EVA取代基的空間位阻效應取消此催化行為。

The invention relates to compounds of formula (I) wherein the substituents are described in claim 1.

本發明涉及通式（I）的化合物，其中取代基如權利要求1中所述。

Flett has examined a series of anthraquinones with various substituents on the ring.

福萊特測試了一系列環上具有不同取代基的蒽醌。

All other substituents are as defined herein.

所有其他取代基如本文所定義。

The synthesis of tetrazolones and the influence of substituents on their herbicidal activities are summarized. 27 References are presented.

總結了四唑啉酮化合物的合成、取代基對母體除草活性的影響。參考文獻27篇。

In the IUPAC system, alkyl and aryl substituents and many functional groups are named AS prefixes on the parent (for example, iodomethane).

在系統命名法中，烷基、芳基取代基和許多官能團被命名為前綴并放在一個母體的前面（例如：碘甲烷）

As results, 7 compounds with different substituents at para-position of 3-phenyl, and 20 derivatives of 3-animocoumarins were synthesized.

全文共合成7個3-位苯環上含不同取代基的目標化合物，以及20個3-位含氮衍生物。

Physicochemical Parameters of Substituents and Its Application in Quantitative Structure Activity Relationship for Drugs

取代基物化參數及其在藥物定量構效關系中的應用

Synthesis and Application to NIR Absorbing Filter for NVIS-compatible Lighting of A Dithiolene Metal Complex NIR Dye without Substituents

無取代硫代雙烯金屬絡合物的合成及其在夜視兼容技術中應用

Stability of a PPV Oligomer with Central Biphenyl Bridge and Peripheral Carbazole Substituents

外圍帶咔唑基的聯苯橋聯PPV齊聚物的穩定性

Study on Aggregation Behavior of Tetraphenoxyphthalocyaninatopallidium with Different Phenoxy-substituents

具有不同芳氧基取代酞菁鈀聚集行為研究

Electronic Structure and Luminescent Property of Phenylenevinylene Dimers with Different Electron-releasing Substituents

帶不同推電子基團二聚苯撐乙烯的電子結構與發光性能

Electrophilic and Ncleophilic Substitutions at Aromatic Rings, Reactions of Substituents of Aromatic Rings

第十二章芳環的親電取代親核取代反應芳環取代基的反應

Other derivatives containing only halogen substituents and their salts

其他僅含鹵素取代基的衍生物及鹽

A study of the directing effect of substituents

芳環上取代基定位效應的研究

Substituents Effect on the Structure and Electron Transfer Properties of Quinone

取代基對醌的結構及電子轉移能力的影響

Influence of Substituents on IR Spectrum of Aromatic Amines in Different Solvents

不同溶劑中取代基對芳香胺紅外吸收光譜的影響

Blood components and blood substituents

血液代用制劑及血液成份制劑

QSAR Studies of 2-Phenylindole Derivatives Using Physicochemical Parameters of Substituents

取代基物化參數用于2-苯基吲哚衍生物構效關系的研究

Effect of Substituents on Benzene Skeleton Vibration in IR Spectra

紅外光譜中取代基對苯環骨架振動吸收峰的影響規律

R2 is an aryl group or a nitrogen atom-containing heterocyclic group each of which may have one or more substituents;

R2是芳基或含氮原子的雜環基團，它們各自可以具有一個或多個取代基；