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使用與輪胎廠国产在线视频1、橡膠廠對(duì)各種膠料機(jī)橡塑共混等所需原料的塑煉真人自慰120秒免费观看、混煉和終煉欧美性爱一级片免费看，尤其是對(duì)子午胎膠的混煉在线欧美亚洲综合区导航。

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的單晶結(jié)構(gòu)分析表明1具有四配位平面四邊形結(jié)構(gòu)国内精品午夜理论，化合物8是白花丹素的Na鹽九九国产精品色婷婷，以離子化合物形式存在；化合物9～16為白花丹素的La毛片激情片免费看，Y好深好爽一区二区，Dy，Sm亚洲激情第二页，Gd免费AV在线播放不卡，Nd，Er2018亚洲精彩偷拍视频，Eu的稀土金屬配合物av在线1；化合物17是白花丹素的雙核釔結(jié)構(gòu)www.黄色av.com；化合物18為白花丹素的單核釔結(jié)構(gòu)，該配合物除了含白花丹素外色色色色色一一欧美，還有來(lái)自白花丹植物中的另一個(gè)單體化合物也參與配位一边摸一边捅；化合物19～21是以2，2\'-聯(lián)吡啶和鄰菲咯啉等含N配體為輔助配體国产高清国内精品综合色噜噜，具有白花丹素—含N配體—金屬離子的三元配合物欧美一级人与嘼视频免费播放，化合物19是白花丹素和2，2\'-聯(lián)吡啶與Cu的配合物国产丝袜无码，具有五配位的四方錐構(gòu)型91香蕉视频羞羞视频，通過(guò)Cu…O弱的成鍵作用形成二聚體，再通過(guò)分子間的氫鍵作用進(jìn)一步形成一維鏈狀結(jié)構(gòu)天天日操一级黄片，化合物20和化合物21是白花丹素分別與2持黄持好看视频免费，2\'-聯(lián)吡啶和鄰菲咯啉的Zn配合物，都具有六配位八面體構(gòu)型的雙核鋅配合物高清国产黄片，呈一維鏈狀結(jié)構(gòu)黄页观看在线免费，化合物20中鏈與鏈之間的大量氫鍵將一維鏈擴(kuò)展成二維層，分子間的π-π堆積作用進(jìn)一步形成三維結(jié)構(gòu)性动态图免费视频专区。

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 .

這部分介紹了微孔的類分子篩化合物www1黄色视频免费，特別是 Yaghi 等利用剛性和熱穩(wěn)性本身比較好的芳香多酸和多堿配體和金屬離子作為建筑單元發(fā)展的的第三代類分子篩，即：金屬—有機(jī)框架黄色视频特级a视频免费看。

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.

本論文由以下四部分組成：第一部分：文獻(xiàn)綜述本部分比較全面地回顧了有機(jī)含碘化合物作為氯化激情久久小说、氟化、氧化試劑在精細(xì)有機(jī)合成中的應(yīng)用在线观看国产对白视频免费下载，主要針對(duì)含碘試劑的合成及其結(jié)構(gòu)做了比較詳細(xì)的綜述亚州欧美一级性交，并且列舉了大量反應(yīng)實(shí)例引證了這種類型試劑在藥物及天然產(chǎn)物合成方面具備的優(yōu)勢(shì)。

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.

這種情況下黄色网站天天天，許多氮的化合物能在全世界各地生產(chǎn)黄片一级二三级，以極低的成本，以任何想得到的數(shù)量欧美激情欧美激情欧美，并且用它們來(lái)肥沃我們的土地www久久网，讓利潤(rùn)無(wú)限增長(zhǎng)。

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：通過(guò)各種化學(xué)合成方法完成目標(biāo)化合物4--6-甲氧基-7-(2-羥基取代丙氧基)喹唑啉的合成并對(duì)目標(biāo)化合物進(jìn)行結(jié)構(gòu)修飾午夜免费福利视频，以期獲得高活性的表皮生長(zhǎng)因子受體酪氨酸激酶抑制劑女主播午夜福利在线一区二区三区四区五区。

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.

目標(biāo)化合物的順利合成為以后合成一系列4-取代苯胺-6-(2-羥基取代丙氧基)喹唑啉類化合物奠定了良好的基礎(chǔ)。

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.

目標(biāo)化合物的順利合成為以后合成一系列4-取代苯胺-6-(2-羥基取代丙氧基)喹唑啉類化合物奠定了良好的基礎(chǔ)欧美精品C0m。

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.

通過(guò)實(shí)驗(yàn)對(duì)比我們找到了較佳的反應(yīng)物的投料比国产日韩欧美色综合、反應(yīng)溫度和反應(yīng)所用的溶劑。4、根據(jù)不同條件下的光反應(yīng)結(jié)果黄色无码免费，確定了硫脲衍生物的相對(duì)較好的光反應(yīng)條件和光照時(shí)間一本无道码dvd在线播放一区，首次利用光化學(xué)手段成功得到50個(gè)具有生物活性的喹唑啉衍生物和4個(gè)具有脲基官能團(tuán)的光氧化的產(chǎn)物，測(cè)定了兩個(gè)具有代表性的喹唑啉和光氧化的產(chǎn)物的晶體結(jié)構(gòu)2020国内精品久久久久精免费。

Numerous quinoxaline derivatives have been prepared to get biologically active compounds, and the research continues to synthesize new compounds having unusual skeletons.

許多喹喔啉衍生物被認(rèn)定具有生物活性亚洲图片欧美小说，故不斷地被研究以合成新的骨架人人操人人爽黄色。