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.

在對實驗結果作了詳細的討論后得出結論：在這一反應中美女黄片a，反應物中的硝基并沒有被徹底還原為氨

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

計算了硝基的旋轉能壘欧美片aaaaaaaa片，由此可以解釋硝基在室溫下的無序現(xiàn)象。

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

硝基在反應中完全轉變成氯苦色色男人网。

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

從化學結構的觀點來看黄片无码A级，馬兜鈴酸蠻特別的，它具有一個硝基(NO2)成年人福利视频，這在天然有機化合物中并不常見

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.

測試結果發(fā)現(xiàn)婷婷五月综合视频精品，這些化合物的β值為10^-^2^9esu數(shù)量級，其數(shù)值大小與取代基D的電子性質并無直接的關系超碰99re91伊人公开精品，表明從D到NO2并未發(fā)生有效的分子內電荷轉移黄片@126.com。

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.

最常見的例子是有機化合物，亞硝酸鹽類的同分異構體，其中一個碳原子以共價鍵與硝基中的氮原子結合性色一区二区。

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.

最常見的例子是有機化合物美女免费的黄色视频，亞硝酸鹽類的同分異構體，其中一個碳原子以共價鍵與硝基中的氮原子結合91黄色视频在线免费看。

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一级香蕉电影，用H2/Pd-C對Ⅶ的硝基進行還原，得到的Ⅷ中的氨基可當即被甲跖访纖ww视频在线观看；访来髮挪灞疲褂散鞯舰舻膬刹椒磻徊酵瓿伞?/p>

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.

所考察的含有羥基和硝基的多環(huán)芳烴化合物對自由基誘導的人血紅細胞溶血有一定的抑制作用久久久久国产一级男女毛片高清版，對AAPH誘導的DNA損傷有不同程度的保護作用免费看黄色毛片网站播放，且它們的抗氧化活性與硝基取代基之間表現(xiàn)出一定的構效關系。

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.

另外日日干人人干，本文還將烷氧基作為電子給體一级免费黄片，硝基作為電子受體的液晶性非線性光學基元引入聚合物體系。