查询词典 compounds
- 与 compounds 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It suitable for tire and rubber factories to plasticize, mix and finally mix various compounds including together with rubber and plastics, especially for mixing of radial tire compounds.
使用与轮胎厂、橡胶厂对各种胶料机橡塑共混等所需原料的塑炼、混炼和终炼,尤其是对子午胎胶的混炼。
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In complex 1,Cucan be described as a four-coordinated square planar geometry.Compound 8 is the sodium salt of plumbagin and exists as ionic compound.Compounds 9-16 are the rare earth complexes of plumbagin with La,Y,Dy,Sm,Gd,Nd,Erand Eu.Compound 17 is binuclear Y complex.18 is mononuclear Ycomplex with plumbagin and another ligand from Plumbago Zeylanica.Compounds 19-21 are the ternary complexes with plumbagin and 2,2\'-bpy and phen as assistant ligand.In 19, the geometry of Cucan be described as five-coordinated distorted square pyramid that exists in a dimer through the weak bonding,and 1-D chain structure is formed by intermolecular hydrogen bonds.
化合物1的单晶结构分析表明1具有四配位平面四边形结构,化合物8是白花丹素的Na盐,以离子化合物形式存在;化合物9~16为白花丹素的La,Y,Dy,Sm,Gd,Nd,Er,Eu的稀土金属配合物;化合物17是白花丹素的双核钇结构;化合物18为白花丹素的单核钇结构,该配合物除了含白花丹素外,还有来自白花丹植物中的另一个单体化合物也参与配位;化合物19~21是以2,2\'-联吡啶和邻菲咯啉等含N配体为辅助配体,具有白花丹素—含N配体—金属离子的三元配合物,化合物19是白花丹素和2,2\'-联吡啶与Cu的配合物,具有五配位的四方锥构型,通过Cu…O弱的成键作用形成二聚体,再通过分子间的氢键作用进一步形成一维链状结构,化合物20和化合物21是白花丹素分别与2,2\'-联吡啶和邻菲咯啉的Zn配合物,都具有六配位八面体构型的双核锌配合物,呈一维链状结构,化合物20中链与链之间的大量氢键将一维链扩展成二维层,分子间的π-π堆积作用进一步形成三维结构。
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This part introduce microporous zeolite compounds , especially the zeolite-like compounds which were developed by Yaghi et al by using thermally stable aromatic polyacid and metal ions as second building unit .
这部分介绍了微孔的类分子筛化合物,特别是 Yaghi 等利用刚性和热稳性本身比较好的芳香多酸和多碱配体和金属离子作为建筑单元发展的的第三代类分子筛,即:金属—有机框架。
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This thesis consists of four parts as follows: Part I: ReviewThe purpose of the present review is to summarize the organic chemistry of polyvalent iodine compounds regarded as Chlorides, Fluorides, Oxidize reagents in the field of organic synthesis, especially focus on their synthetic application and space structure, there are lots of reaction examples to illustrate the incomparable merits of organic polyvalent iodine compounds in the synthesis of some drugs and natural products.
本论文由以下四部分组成:第一部分:文献综述本部分比较全面地回顾了有机含碘化合物作为氯化、氟化、氧化试剂在精细有机合成中的应用,主要针对含碘试剂的合成及其结构做了比较详细的综述,并且列举了大量反应实例引证了这种类型试剂在药物及天然产物合成方面具备的优势。
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In this manner many compounds of nitrogen may be manufactured all over the world, at a small cost, and in any desired amount, and by means of these compounds the soil can be fertilized and its productiveness indefinitely increased.
这种情况下,许多氮的化合物能在全世界各地生产,以极低的成本,以任何想得到的数量,并且用它们来肥沃我们的土地,让利润无限增长。
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Objective: through various chemical synthesis target compounds 4 -- 6 - the - 7 -(2 - hydroxyl replace c oxygen radicals) quinazoline compounds were synthesized and the structure of the modified, so as to get high epidermal growth factor receptor tyrosine kinase inhibitor.
目的:通过各种化学合成方法完成目标化合物4--6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉的合成并对目标化合物进行结构修饰,以期获得高活性的表皮生长因子受体酪氨酸激酶抑制剂。
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the target compounds synthesized to synthesize a series after 4 - instead of aniline - 6 -(2 - hydroxyl replace c oxygen radicals) quinazoline compounds has laid a good foundation.
目标化合物的顺利合成为以后合成一系列4-取代苯胺-6-(2-羟基取代丙氧基)喹唑啉类化合物奠定了良好的基础。
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The goal of the successful synthesis of compounds for the subsequent synthesis of a series of 4 - to replace the aniline -6 -(2 - hydroxy replace C oxy) quinazoline compounds laid a good foundation.
目标化合物的顺利合成为以后合成一系列4-取代苯胺-6-(2-羟基取代丙氧基)喹唑啉类化合物奠定了良好的基础。
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Two representative compounds have been determined by X-ray crystallography. The best ratio of reactants, the adequate reaction temperature and solvent have been found by contrast experiments.4. The better photoreaction conditions and irridation times have been confirmed through the different photoreaction results. It is the first time that fifty quinazoline derivatives with biological activity and four photooxidation products with urea functional groups have been obtained by photochemistry method. Two representative compounds, quinazoline derivatives and photooxidation products, have been determined by X-ray crystallography, respectively.
通过实验对比我们找到了较佳的反应物的投料比、反应温度和反应所用的溶剂。4、根据不同条件下的光反应结果,确定了硫脲衍生物的相对较好的光反应条件和光照时间,首次利用光化学手段成功得到50个具有生物活性的喹唑啉衍生物和4个具有脲基官能团的光氧化的产物,测定了两个具有代表性的喹唑啉和光氧化的产物的晶体结构。
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Numerous quinoxaline derivatives have been prepared to get biologically active compounds, and the research continues to synthesize new compounds having unusual skeletons.
许多喹喔啉衍生物被认定具有生物活性,故不断地被研究以合成新的骨架。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力