查询词典 nitro

The experimental result is discussed in detail and it is proved that the nitro group in raw material cannot be reduced into amino group entirely.

在对实验结果作了详细的讨论后得出结论：在这一反应中，反应物中的硝基并没有被彻底还原为氨

The rotation barrier of nitro group was calculated, which cantestify their disordered state under room temperature.

计算了硝基的旋转能垒，由此可以解释硝基在室温下的无序现象。

Complete transformation of the nitro group to chloropicr in takes place in the reaction.

硝基在反应中完全转变成氯苦。

Aristolochic acid is chemically unique by possessing a nitro group, which is uncommon among naturally occurring organic compounds.

从化学结构的观点来看，马兜铃酸蛮特别的，它具有一个硝基(NO2)，这在天然有机化合物中并不常见

There is no close relationship between the electronic property of the substituent and the value of β, indicating that an effective intramolecular charge-transfer from D to nitro group does not exist.

测试结果发现，这些化合物的β值为10^-^2^9esu数量级，其数值大小与取代基D的电子性质并无直接的关系，表明从D到NO2并未发生有效的分子内电荷转移。

The most common examples are organic compounds, isomers of nitrite ester s in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom.

最常见的例子是有机化合物，亚硝酸盐类的同分异构体，其中一个碳原子以共价键与硝基中的氮原子结合。

The most common examples are organic compounds, isomers of nitrite esters in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom.

最常见的例子是有机化合物，亚硝酸盐类的同分异构体，其中一个碳原子以共价键与硝基中的氮原子结合。

With the occurrence of H2/Pd-C and ethyl formic ester,the reduction of the nitro group and the formylation of the amino group could be finished in one step.

但是在甲酸乙酯存在下，用H2/Pd-C对Ⅶ的硝基进行还原，得到的Ⅷ中的氨基可当即被甲酰化，使由Ⅶ到Ⅳ的两步反应一步完成。

Biological assays for several PAHs containing hydroxy and nitro group indicated that they could protect human red blood cells from hemolysis induced by AAPH and displayed effect of inhibitory for damage of DNA in vitro. They were found to have cytostatic and cytotoxic activity for HL-60 cell lines.

所考察的含有羟基和硝基的多环芳烃化合物对自由基诱导的人血红细胞溶血有一定的抑制作用，对AAPH诱导的DNA损伤有不同程度的保护作用，且它们的抗氧化活性与硝基取代基之间表现出一定的构效关系。

On the other hand, a kind of liquid crystalline NLO units which possessesalkyloxy as the donor and nitro group as the acceptor was incorporated into polymersystems in this thesis.

另外，本文还将烷氧基作为电子给体，硝基作为电子受体的液晶性非线性光学基元引入聚合物体系。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。