查询词典 aromatic compounds

The KARI test of compounds 5a-5s show that the compounds have a weak inhibitory effect on KARI enzyme.

KARI活性测试结果表明，化合物5a~5s有较弱的KARI抑制活性。

After adding different metal compounds (K2CO3, NaCl and Al2O3), the sludge ignition point had a certain drop and the characteristics combustion index are also changed, indicating the combustion performance of the sludge was improved. Different metal compounds behave different katalysis at different combustion stage. And K2CO3 performs stronger catalytic capacity than that of NaCl and Al2O3 in the whole process.

污泥添加不同金属化合物K2CO3、NaCl和Al2O3后，其着火点有一定的下降，对污泥的燃烧有促进作用；不同金属元素化合物的加入对污泥燃烧性能有一定的改善，并且在燃烧的不同阶段金属化合物表现出不同的催化能力，其中K2CO3的催化性能强于NaCl和Al2O3。

On the basis of molecular design and assembly, the polyoxometalate compounds supported by Keggin, Dawson, lacunary Keggin, and Silverton-type etc. polyanions on the basis of well-known and novel polyanions as building blocks were successfully synthesized by the hydrothermal technique, which are"decorated"or"bridged"by organic N-donor and/or O-donor ligands. The study on synthetic conditions and rules for these hybrid compounds and characterization by X-ray crystallography, spectroscopic, thermal, electrochemical and magnetic properties are carried out.

本文主要利用水热合成方法，从分子设计及组装的思想出发，借助不同N和含O的有机配体对多金属氧酸盐阴离子结构进行&修饰&或&桥连&，合成了一些以饱和Keggin结构、饱和Dawson结构、缺位Keggin结构和Silverton结构等阴离子为构筑模块的多金属氧酸盐化合物，研究了这些化合物的合成条件及规律并对它们的晶体结构、谱学性质、热性质以及磁性质进行了研究。

From Leontopodium nanum (collected from Zhang County, Gansu Province), 12 compounds were isolated, of which 9 compounds have been identified. Among them, a derivative of coumarin is new.

从采自甘肃漳县的矮火绒草全草的甲醇提取物中，采用同样方法共分离纯化得到12个化合物，鉴定了9个化合物的结构，其中有1个新化合物，命名为6，7-并二氧六环[2-（1-甲酯基-1-甲基）-甲烯基]-香豆素（1）。

The constituents isolated from Lindera myrrha were twenty compounds, two of which are new compounds.

另外，由山胡椒共分离得到20个化合物，其中2个化合物为新化合物。

This work solves the assignments of uncertain C3 and C1′ NMR signals in the previous literature and will be helpful to study the structures of this kind of new isoflavone compounds by 2D NMR spectroscopy and bioactive compounds in puerarin lobate directly by diffusion2chemical shift 2D NMR.

这些工作有助于利用二维核磁共振技术研究和确定含季碳较多的异黄酮类新化合物的结构和利用扩散相关的核磁共振新技术研究葛根的生理活性成份与靶分子相互作用。

Compounds Ⅰ,Ⅱ were first isolated from Genus Lonicera, while compounds Ⅲ~Ⅺ were isolated from the plant for the first time.

化合物Ⅰ、Ⅱ为首次从忍冬属植物中分离得到，化合物Ⅲ~Ⅺ为首次从该种植物中分离得到。

In RMnO3 compounds, because of it's magnetoelectric effect these compounds are much interesting. Magnetoelectric effect have relations with the couplings of electron, phonon and spin.

在稀土族锰氧化物材料中，因为其具有磁电效应而使得此类材料相当的有趣，而磁电效应与材料中的电子、声子与自旋的行为有相当密切地关系。

Compounds, including 15 new C21 steroids, were isolated from the alcohol abstracts of the ratten of Marsdenia tenacissima. 37 of them are C21 steriods and their glycosides, the rest 5 compounds are lignans.

从通光散藤茎的乙醇提取物中，共分离得到42个化合物，其中包括C21甾体及其甾体皂甙类化合物37个，木脂体类化合物5个，有15个新化合物，均为C21甾体类化合物。

ObjectiveTo study the content differences of the second compounds between the control and treated Mentha haplocalyx plants, which were sprayed with stress hormone MJ. MethodsThe second compounds from M. haplocalyx were extracted by solid phase micro-extraction and the relative contents were determined by gas chromatography-mass spectrometry. ResultsThe relative content in M.

目的 研究用胁迫激素茉莉酸甲酯喷施薄荷后，其用药组与对照组之间次生代谢产物中各成分相对含量的变化。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。