合成物
- 与 合成物 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results show that 4-oxo-β-ionone is the major product with yield of 53.5% under the conditions as follows: reaction temperature 45℃, reaction time 24 h, the molar ratio of n: n(NaClO3): n 20: 100: 3, and pH value of solution in 1-3; on the other hand, 5,6-epoxy-β-ionone is major product with yield of 25.4% when reaction temperature is 40℃, reaction time is 24 h, the molar ratio of n: n(NaClO3): n is 20: 120: 5, and pH values of solution is 3. The excessive β-ionone can be recovered by vacuum distillation for reusing again. 4-oxo-β-ionone and 5,6-epoxy-3-ionone were purified by recrystallization and silica gel column chromatograph respectively with the purity over 98%.
研究结果表明:氯酸钠氧化β-紫罗兰酮的反应主要生成4-氧代-β-紫罗兰酮和5,6-环氧-β-紫罗兰酮,经重结晶和硅胶柱层析分离,纯度高于98%;4-氧代-β-紫罗兰酮的有利合成条件是反应温度为45℃,反应时间为24h,溶液的pH值为1~3,反应物配比n:n(NaClO3):n为20:100:3,最佳收率为53.5%;5,6-环氧-β-紫罗兰酮有利的合成条件是反应温度为40℃,反应时间为24h,溶液的pH值为3,反应物配比n:n(NaClO3):n为20:120:5,其收率为25.4%;未反应的β-紫罗兰酮经减压蒸馏回收后可重复使用。
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1 To mimic the active centers of tyrosinate iron enzymes whichcontain phenolate donors, new tripodal ligand, N-(2-hydroxybenzyl)-N, N-bis(2-benzimidazolymethyl) aminewhich contain imidazoleand phendate groups were designed and synthesized and its iron com-plexes 〓(2)(where Mim=N-Methylimidazole) and Fe 〓(3) were prepared andcharacterized by various spectroscopic methods.
1.1 为了模拟酪酸铁酶活性中心,设计并合成了含有酚羟基和苯骈咪唑基四齿配体N,N-(2-羟基苯)-N,N-二氨,并合成它的铁配合物:Fe〓、Fe〓〓(2)和Fe〓,并经各种谱学手段表征了这些铁配合物。
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Hydrothermal synthesis of Sn-contained complex compounds mostly focuses on the synthesis of sulfur-substitute stibium acid metallic complex compounds.
含锑配合物的水热溶剂热合成主要集中在硫代锑酸金属配合物的合成上。
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The aconitic acid-acrylic acid copolymer, itaconic acid homopolymer and polyepoxysuccinic acid which were non-phosphorus scale and dispersing inhibitors were synthesized with the fermentation products citric acid, itaconic acid and maleic anhydride.
以生物发酵产品柠檬酸和衣康酸为主要原料,分别合成了无磷阻垢分散剂丙烯三羧酸-丙烯酸共聚物和衣康酸均聚物,利用马来酸酐合成了聚环氧琥珀酸。
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Rare earth organometallic chemistry is closely interrelated with materials science, organic synthesis, life science. Rare earth organometallic complexes containing Ln-C σ bond and involving silylene-bridged fluorenyl are of important significance in macromolecular and asymmetry organic synthesis.
稀土金属有机化学与材料科学、有机合成、生命科学等学科密切相关,含Ln-Co键稀土金属有机配合物和含硅桥配体稀土金属有机配合物在高分子和有机合成不对称催化领域具有重要意义。
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We prepared a serious of functional polymers with RAFT method.First we synthesize a tri-block polymer.One end is hydrophobic PMMA and the other end is hydrophilic PtAA,the middle is the functional epoxy group,which can be fluorinate by CF_3COOH.
本文运用RAFT方法合成了一系列不同链长比例的三嵌段共聚物:聚—聚—聚(PMMA-b-PGMA-b-PtBMA),然后利用GMA中含有的环氧官能团,合成含氟的一段,最后将PtBMA一段酸解为亲水段PtAA,即形成了双亲双憎的嵌段共聚物。
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Furthermore, the one-dimensional complexes 26 and 28 with strongπ-πpacking interactions are prepared from DMF solvent, which indicates that the traditional solvent volatilizing method could bring low-dimensional complex.4. By measuring the enthalpy changes of the liquid phase formation reaction for complexes a~e, and calculating the electronic densities of five 5-substituted derivation of isophthalic acid, we can make a conclusion that 5-substituted group changing of the ligand has a little influence on oxygen atoms of carboxyl groups.5. Fluorescence experiments of these complexes indicated that they could be used for luminescence materials in future.6. Using packing saturation rule we calculated and analyzed these series of complexes, and the results showed that the changes of complexes with changes of ligands could be explained from the rule.
在DMF溶剂中得到了具有强π-π堆积作用力的一维配位聚合物[Ln(5-NO_2-bdc)(NO_3)]Ln=Pr(26和Ho(28),表明传统的溶剂挥发合成条件可以得到低维的配合物。4、通过配合物a~e的液相生成反应焓的测定,以及配体阳离子的电子密度计算,进一步佐证了间苯二甲酸的5位取代基变化对配体的羧基氧原子配位能力影响不大的结论。5、荧光特性表明此类配合物可以用于发光材料。6、利用堆积饱和规律对所得系列的配合物的进行计算和分析,发现随着配体的变化,配合物的变化可以从堆积饱和规律出发进行解释。
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The possible mechanism was discussed. These bowl-shaped aggregates are promising candidates for nano reactor or drug carrier.4 2,7-dimethylene-1,4,6-trioxaspiro[4, 4]nonane with two vinyls was prepared to be used as electron-donor and crosslinker. The ATRP of this crosslinker and excess methylacrylate (used as electron-accpetor) was proved to mainly form homopolymers. With the chain-transfer agent S-1-Dodecyl-S\'-(α,α\'-dimethyl-α-acetic acid)trithiocarbonate, the copolymerization of the spiro hydrocarbon, maleic anhydride and MA by RAFT method produced star PMA.
这些由聚电解质复合物自组装形成的聚集体,在微反应器和药物释放等领域具有潜在的应用前景。4合成了双乙烯基的2,7-二亚甲基-1,4,6-三氧杂螺环烷,作为给电子单体和交联剂,与吸电子单体马来酸酐或过量的丙烯酸甲酯形成电荷转移络合物共同聚合,尝试了用ATRP和RAFT方法一步法合成星形聚合物。
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Electron-transporting oxadiazole monomer 2-phenyl-5-p-(N-acrylateamino-phenyl-1,3,4-oxadiazole was designed, synthesized and copolymerized with NVK, MMA and Tb2 to give a Tb-complex containg copolymer PKMOTb with dual transporting moieties.
设计并合成了一种具有电子传输性能的噁二唑类单体2-苯基-5--1,3,4-噁二唑,并将此单体和NVK、MMA、Tb_2共聚,合成了同时带有双传输基团和稀土金属配合物单元的新型四元共聚物PKMOTb。
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The Schiff base of O-ethylthonophosphoryl-dihydrazine with salicylaldehyde and its Ni, Cu, Zn complexes was synthesized.
合成了O-乙基硫代磷酰二肼的双水杨醛席夫碱(H2L)及以它为配体分别与Ni、Cu、Zn离子形成的配合物,所合成的席夫碱配体及配合物均为未见文献报道的新化合物。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。