A novel isomer of furazano energetic compound 3,4-diaminofurazanofuroxan was synthesized by the dimeric ring-close reaction of transitional intermediate 3-amino-4-cyanofurazan oxide after the energetic compound 3-amino-4-chloroximinofurazan was treated with diluent alkali at low temperature, The yield of DAFF isomer could be over 66.3% and its single crystal was cultivated.

將含能化合物3-氨基－4-氯肟基呋咱在低溫下用稀堿處理后發(fā)生過(guò)渡中間體3-氨基－4-氰基呋咱氧化物的二聚關(guān)環(huán)反應(yīng)合成了新型呋咱類含能化合物3视频二区日韩，4-二氨基呋咱基氧化呋咱異構(gòu)體黄色无码免费网站，產(chǎn)率達(dá)66.3%。

A series of the ligands including 6-bromo-piperonal dimethyl acetal, bis (9-fluorenyl) silane, and the dimer of indene have been synthesized and characterized.

合成了溴代胡椒醛二甲基縮醛基配體中国人免费的视频大全在线，合成了手性配體甲基苯基雙芴基硅烷92人妻，合成了茚的二聚體，對(duì)其進(jìn)行表征高清一区二区三区视频，培養(yǎng)單晶并測(cè)定了晶體結(jié)構(gòu)色日韩一区二区。

The main results and conclusions are as follows:The trans-1,4 content of polybutadiene increased from 50%to 89%along with the increasing of Al/Li ratio;the trans-1,4 content of polyisoprene increased from 24%to 46%as well as 3,4 content along with the increasing of Al/Li ratio;the microstructure of polystyrene was invariable and atactic.

主要研究結(jié)果及結(jié)論如下：隨著Al/Li的增加，聚丁二烯的反式結(jié)構(gòu)含量從50%增加到89%国内一级黄色a片；聚異戊二烯的反式-1国产性爱三级片，4-結(jié)構(gòu)含量從24%增加到46%国产不卡免费一级视频，并且其3，4結(jié)構(gòu)含量也有所增加18岁禁看黄色网站；聚苯乙烯的微觀結(jié)構(gòu)基本沒(méi)有變化日韩精品激情视频网站免费观看在线，為無(wú)規(guī)聚苯乙烯。

The main results and conclusions are as follows:The trans-1,4 content of polybutadiene increased from 50%to 89%along with the increasing of Al/Li ratio;the trans-1,4 content of polyisoprene increased from 24%to 46%as well as 3,4 content along with the increasing of Al/Li ratio;the microstructure of polystyrene was invariable and atactic.

加熱器主要研究結(jié)果及結(jié)論如下：隨著Al/L i的增加瑟瑟的网址，聚丁二烯的反式結(jié)構(gòu)含量從50%增加到89%日本国产欧美性爱；聚異戊二烯的反式-1，4-結(jié)構(gòu)含量從24%增加到46%女生自慰喷水在线观看，并且其3久久99久久1，4結(jié)構(gòu)含量也有所增加；聚苯乙烯的微觀結(jié)構(gòu)基本沒(méi)有變化国产视频黄色，為無(wú)規(guī)聚苯乙烯禁18在线观看免费网。

The one electron oxidative splitting reaction mechanism between 9,10-anthraquinone-2-sulfonate and cyclobutane dimethylthymine dimer was acquired.

研究了蒽醌-2-磺酸鹽與環(huán)丁烷型二甲基胸腺嘧啶二聚體發(fā)生的單電子氧化裂解反應(yīng)機(jī)理。

R-1,c-2, t-3, t-4-1,3-bis(4-biphenyl)-2,4-di(4-pyridyl)cyclobutane was obtained in diluted sulfuric acid by photodimerization reaction.

通過(guò)反-1-(4-聯(lián)苯基)-2-(4-吡啶基)乙烯在稀硫酸中的光二聚反應(yīng)合成了r-199r网在线免费观看视频，c-2久草欧美一二三四区，t-3，t-4-1亚洲欧美性交图片，3-雙(4-聯(lián)苯基)-2免费操人的网站，4-二(4-吡啶基)環(huán)丁烷。

At present, a kind of novel surfactant oligomeric surfactant which have high surface activity have become one of focus on surfactant research. A typical example of them is dimeric or Gemini surfactant.

當(dāng)前欧美在线公开视频，一類新型的表面活性劑—低聚表面活性劑成為研究的熱點(diǎn)国产人成视频WWW，其中典型的例子是二聚表面活性劑，也稱為雙子表面活性劑99riAV国产裸体。

The synthesis of the phthalide dimers and solid-support of the chiral diamines were also concerned.

此外欧美日韩一区二区综合另类，我們對(duì)于合成苯酞二聚體類化合物和手性二胺的固載化進(jìn)行了嘗試。

A new technology to synthetize trans-1,4-polyisoprene with bulk precipitation polymerization in the presence of supported Titanium catalysts was introduced, and the technogical process , its economical and qualty index were discussed.

簡(jiǎn)要介紹了采用負(fù)載鈦體系催化異戊二烯本體沉淀聚合法合成高反式-1欧美最淫色最黄的网站，4-聚異戊二烯的新技術(shù)欧美特级黄片在线播放、工藝流程和技術(shù)經(jīng)濟(jì)指標(biāo)。

Diethyldithiocarbamate and its derivates are thus a group of chemical substances. Disulfiram, the dimer of DDC, presents good anti-cataract activity. But the use of DSF in ocular treatment was limited by its poor water solubility.

雙硫侖(disulfiram国内自拍AV，DSF)為二乙基二硫代氨基甲酸(Diethyldithiocarbamate免费一级高清无码亚洲特黄片，DDC)的二聚體，DDC及其衍生物是一類具有抗白內(nèi)障活性的化合物一级做α爱过程免费视频，其中DSF的活性較高97在线超级对对碰免费，但由于溶解度較低，限制了DSF的應(yīng)用日韩se片。