bis

bis(cyclopentadienyl) vanadium

双(环戊二烯基)钒

Abstract : The electron impact mass spectra of ten new C2-symmetric chiral bis(oxazoline) and bis(thiazoline) have been studied.

摘要 ： 本文研究了十个新C2对称手性双恶唑啉和双噻唑啉等两个系列电子轰击质谱。

Two kinds of bis-hydroxyalkyl or bis-methyl formylate subtituted bis-ethylenedithio-tetrathiafulvalenes (BEDT-TTF) and their charger-transfer complexes (CT-complexes ) with TCNQ were synthesized.

合了带双羟烷基及双甲酸甲酯基两种双二硫亚乙基四硫富瓦烯(BEDT-TTF)衍生物及其它们与TCNQCT-络合物。

Taking pyromellitic dianhydride and thionyl chloride as raw key material, 2,5-bis(methoxycarbonyl)terephthaloyl chloride was synthesized.

以氯化亚矾及均苯四甲酸酐为主要原料通过酰氯法合了对位均苯二甲酯二酰氯。

Using ortho-bis(porpargyl alcohol) derivatives as starting materials, we employed sulfenyl or sulfinyl chloride under base condition to generate bis-allene intermediates.

所采用合方式以邻位二丙炔醇为起始物，碱性环境中与次磺氯或亚磺氯作用生丙二烯后，再经环化反应得多并苯化合物。

Alles an mir... von Kopf bis Fub,sogar jedes Haar auf meinem Kopf gehort dir.

（从现开始，我身，我心，我一切一切都是）

Prior to this modification, the minor diastereomer could only be removed at the stage of the bis-TBS ether (-)- 21 .

此之前修改,只能拆除小映舞台双乙醚TBS电视台(94.1)21.

Title: Vinyl Polymerization of Norbornene with Bis(imino)pyridyl Nickel(II) Complexes Author(s): Huang, YB.

web of science查文献，头一篇是这篇文章： 1.

In this thesis, the reaction of aldehydes with dimethyl -- dichlorosilane producingdimethylsilyl bis -- enol ethers has been studied.

本文对醛和二甲基二氯硅烷反应合二甲硅基双烯醇醚进行了研究。

Preparation of ethylene bis stearamide using stearyl chloride and ethylenediamine (EDA) as raw materials has been studied.

研究了以乙二胺和硬脂酰氯为原料制备乙撑双硬脂酰胺反应,讨论了原料配比、反应时间、反应温度影响。

Our neighbour's a very careless bis driver; he never thinks about what he's responsible for.

我们邻居是个粗心大意公共汽车驾驶员,从来不考虑自己有什么责任。

In the first part of this paper, three new ligands with bis(8-hydroxyquinoline) which were substituted by methoxy, butoxy and octoxy were synthesized by Witting-Horner reaction.

自从1987年C.W.Tang等人报道了以8-羟基喹啉铝（Alq3）为发光层制备高亮度电致发光器件以来，有机金属配合物发光材料及其器件加工工艺为有机电致发光领域一个研究热点。

DBNCPA of asymmetry acid bis-diazo reagent have the color reaction with the metal palladium,but have not obvious color reaction with other five kind of metal elements of the platiniridium.

作为不对称变色酸双偶氮试剂二溴硝基偶氮氯膦与金属钯可发生显色反应,而与同属铂系元素其他五种金属显色反应并不明显;

A planar tetradentate dinuclear ligand, 3, 5-bis(2-pyridyl) pyrazole, was synthesized by a three-step reaction of esterification, condensation and addition.

以2-吡啶甲酸为原料，经酯化、缩合、加合了平面四齿双核配体3，5-二（2-吡啶基）吡唑。

Some experiments were did on herbicide activity, and had found that activities of some compounds was good,especially 3,6-bis-benzyl-s-tetrazine.

对其中部分化合物进行了生物活性实验,发现有些化合物显示了较好活性,同时发现烷基基引入可以提高除草活性。

Syntheses and Characterization of Bridged Bis(2 mercapto 5 methyl 1,3,4 thiadiazole) Compounds and Their Complexes.

桥联双(2-巯基-5-甲基-1,3,4-噻二唑)化合物及其配合物合和表征

The paper has also listed the chemistry structural formula of the two kinds of bis(triazinyl)aminostibene and summarized their synthes...

文章列出了这两类荧光增白剂主要品种化学结构式、简述了它们合工艺路线及性能。