查询词典 olefin

Studies on olefin-coordineting transition metal carbene complexes XVI.

含烯烃配体的过渡金属卡宾配合物的研究 XVI。

This thesis consists of three main parts of the research work on the syntheses, structures and reactivities of the olefin-coordinated transition metal carbene and carbyne complexes. In chapter 1, on the basis of our previous research works on the reacitivites of the cationic carbyne complexes of transition metals with metalcarbonyl anions, we explored the reactions of the cationic carbyne complexes of manganese (1) and rhenium (2) with polymetalcarbonyl anions, and developed a new method for the preparations of heternuclear trimetal bridging carbyne complexes.

本论文对烯烃配位的过渡金属卡宾和卡拜络合物的合成、结构和反应性能进行了研究，主要进行了如下三方面的工作：第一章在本小组过去的研究基础上，进一步考察锰和铼的阳离子卡拜络合物1和2与羰基金属阴离子化合物的反应，用来合成异核多金属桥卡拜络合物，发展合成多金属桥卡拜络合物的新方法和新路线。

Methods After cleanout, to use GD and olefin dip in, and to make a comparative observation.

手术器械清洗后采用GD润滑剂浸泡以及石蜡油上油，对手术器械润滑效果以及灭菌效果进行了观察对比。

Cycloolefin and α-olefin copolymerization and application of its resultant products have been reviewed.

评述了环烯烃与线性α-烯烃共聚物的主要生产厂家、结构与性能及制备方法等。

The copolymerization of cycloolefin and α-olefin, and structure of the obtained polymer are significantly affected by the structure and symmetry of metallocene catalysts, electronic effect and steric hindrance of ligands.

着重介绍了加成聚合法中茂金属催化剂的结构对称性、配体的电子和体积效应、反应条件等对聚合活性、产物组成与序列分布及相关热性能的影响。

The copolymerization of cycloolefin and α-olefin,and the structure of the obtained polymer are significantly affected by the structure and symmetry of metallocene catalysts ,electronic effect and steric hindrance of ligands.

着重介绍了加成聚合法中茂金属催化剂的结构对称性、配体的电子和体积效应、反应条件等对聚合活性、产物组成与序列分布及相关热性能的影响。

The thermolysis of the isomerized products derived from norbornadiene-coordinated carbonyl iron complexes gave two sorts of the thermolytic products based on different substituents on the olefin ligands. One is the corresponding diiron dimer complex, and the other is the complex in which the C-C bond of the cycloolefin ligand is broken.

以降冰片二烯三羰基铁络合物衍生出来铁卡宾络合物的异构化产物的热解，随着烯烃配体上取代基的不同，而分别得到了络合物发生二聚和烯烃配体发生碳碳键断裂的两类热解产物。

The deoxidizer of the invention can be reduced and regenerated below 150 DEG C, and can purify the trace oxygen in the olefin with a carbon atom more than 3 at room temperature to less than 0.05ppm.

本发明的脱氧剂可以在150℃以下还原再生，室温下将C3以上烯烃中的微量氧净化至0.05ppm以下。

The solubilities of ROK in several different solvents such as toluene, ether, THF and 2G were studied. Considering the influence of solvent on the microstructure of telomers, THF was determined to be the best solvent.In the system of n-BuLi/ROK/xylene/2G/olefin, the influence of ROK on diolefin anionic telomerization was investigated, and the result shows that the difference between butadiene system and isoprene system was little.

考察了不同ROK在甲苯、乙醚、四氢呋喃及二乙二醇二甲醚(2G)等不同溶剂中溶解能力，又考虑到溶剂对聚合物结构的影响，以及工业化的难易程度等方面，最终确定了ROK的最佳溶剂为THF。

A liquid amine ashless antioxidant HAO without phosphorus and zinc was prepared by alkylation of diphenylamine and 12 carbon iso olefin mixture, which can be applied at high temperature.

以二苯胺和含C12 的混合异构烯烃为原料，通过烷基化工艺，研制出了适于高温条件下应用的不含磷、锌元素的液态胺型无灰抗氧剂双十二烷基二苯胺。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。