• 方法可以得到其他化学方法所得不到异构定性定量分析结果

    Experimental results demonstrate that the dielectric analysis is a simple and effective method for qualitative and quantitative analysis of isomers, which is not possible with other chemical methods.

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  • 化合转化为异构物重排分子结构而不改变分子大小化学成分炼厂工艺

    A refinery process for converting chemical compounds into their isomers, i. e. , rearranging the structure of the molecules without changing their size or chemical composition.

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  • 常见例子有机化合亚硝酸盐类的同分异构其中一个原子共价键硝基中的原子结合。

    The most common examples are organic compounds, isomers of nitrite esters in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom.

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  • 可以使用立体选择立体专一合成方法或者外消旋混合分离获得单独光学异构

    Use of stereoselective or stereospecific synthetic methods or separation of racemic mixtures can be used to obtain individual optical isomers.

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  • 辛烷一种具有这种分子式的同分异构石蜡氢碳化合此式为c8h18石油中发现用作燃料溶剂

    Any of various isomeric paraffin hydrocarbons with the formula C8H18, found in petroleum and used as a fuel and solvent.

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  • 结论烯烃臭氧形成及其臭氧异构反应历程,属游离基型的可能性更大

    Conclusion the form of the alkene ozone oxide and its reaction course of ozone chain isomerization are likely to be the free radical ones.

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  • 数值方法研究了在具有异构非线性聚合光学空间孤子垂直全光调控

    In the photoisomerized polymer, the perpendicular and all-optical control of optical spatial soliton is simulated by numerical method.

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  • 实验发现,1,4-二苯基1,3-丁二烯等多聚烯化合共振光子(NRTP异构强烈依赖于光波长

    The efficiency of the non resonant two photon (NRTP) isomerizations of stilbenes and 1,4 diphenyl 1,3 butadienes was found to depend strongly on the wavelength of the laser pulses.

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  • 研究催化D-阿拉伯糖差异构化为D-核糖相体系氯化硼酸催化剂对反应的影响

    The effects of chloride and boric acid on the epimerization of D-arabinose to D-ribose in aqueous solution using ammonium paramolybdate as catalyst was studied.

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  • 氮基染料会发生致羰基配合异构

    The azo-dyes perform an optically induced cis-trans isomerization.

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  • 本文给出金刚及其异构合成毛细管相色谱色谱-质谱联用分析方法

    This paper describes a capillary GC and GC-MS analytical method for the synthetic adamantane and its isomers.

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  • 共价键化合,占据座位SAS(立体角系数扣)值异构有利于配体堆积

    In weak covalent compounds, the isomer with the maximum SAS (Solid Angle Factor Sum) of the ligand-occupied seats is more favourable for ligand packing.

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  • 单核化合原子配位于不同苯基异构体组成的混合

    This mononuclear complex was a mixture of isomers with molybdenum coordinated to different phenyl groups.

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  • 发明的该配合结构单一存在异构体,该配合具有结构确定易于分离等特点。

    The coordination compound provided by the invention has a single structure without any isomer, and is characterized in defined structure and easy separation.

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  • 最后解释了生标志化合立体同分异构不同深度变化原因

    Finally, the reason for stereo-isomer variation of cholestane in different depths and abundances are explained.

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  • 我们把单齿配合异构定义推广两个二齿配体的配合

    The definition of cis, trans-isomers for monodentate ligands has been extended to complexes containing two bidentate ligands.

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  • 对于取代络合ma4b2平面排列三个异构常见的为有机化学中的位、间位对位排列。

    FOR a disubstituted complex, MA4B2, the planar arrangement gives three isomers, the familiar ortho, meta, and para arrangements of organic chemistry.

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  • 体系中的偶氮聚合光诱导下发生反式异构形成液晶分离光栅

    In this system, phase grating is formed after photoinduced trans-cis isomerization occurs on azo polymer and it separates with the liquid crystal.

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  • 不对称合成法化合形成两种不等数量同分异构体的化学反应

    Asymmetric synthesis: Chemical reaction by which unequal amounts of two product isomers are formed.

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  • 依托泊苷能稳定催化循环中的一种共价拓扑异构酶ii裂解的DNA中间复合导致基因组不稳定性细胞死亡(2,3)。

    Etoposide stabilizes a covalent topoisomerase II-cleaved DNA intermediate complex in the catalytic cycle of the enzyme, leading to genomic instability and cell death (2, 3).

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  • 萘酚一种有机化合c10h7oh,存在于两种异构形式

    An organic compound, C10H7OH, occurring in two isomeric forms, alpha-naphthol and beta-naphthol.

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  • 六种有毒同分异构中的一种(CH3)2c6H3nh 2,二甲苯制得主要用于染料中间

    Any of six toxic isomers, (CH3) 2c 6h 3nh 2, derived from xylene, used chiefly as dye intermediates.

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  • 双(苯并化合不同极性溶剂中的光谱理及光顺反异构问题进行详细研究。

    The problem of photophysics, spectrum and photo isomerization of bis(benzoxadyl) stilbene in different solvents were studied carefully.

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  • 根据异构化学原理有机相同分子式相同的官能团时,它们化学性质理性质相似

    According to the principle of isomeric chemistry, when organic substances have the same molecular formula and the same functional groups, their chemical and physical properties are very similar.

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  • 本文介绍了合成化合一些方法尤其是选择性制备c 22r异构方法。

    In this article, some methods to prepare this kind of compounds are described, especially the methods to selectively prepare the C22R epimer.

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  • 对称合成当代有机合成热点,不对称催化方法获取单一异构手性化合具有前景方法之一。

    Asymmetric synthesis is the hot point of organic synthesis in recent years. Asymmetric catalytic method is one of the most prospective methods to obtain pure chiral compounds.

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  • 乙醇分子复合互变异构能和孤立溶质分子互变异构结果接近,表明溶剂分子参与反应并没有改变互变异构平衡

    The tautomeric energies of DHP(HMP)-ethanol clusters is close to that of the isolated solute molecule. It indicates that the solvent molecule have not changed the tautomeric equilibrium.

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  • 本文部分化合对映异构拆分机制进行了初步探讨。

    Mechanisms of the resolution of some of the racemic compounds on these bounded phases were proposed.

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  • 异构十三醇和氨气原料采用金属氧化催化剂合成异构双十三胺。

    Iso-ditridecylamine was synthesized by using iso-tridecanol and ammonia as raw materials and metal oxides as catalyst .

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  • 异构十三醇和氨气原料采用金属氧化催化剂合成异构双十三胺。

    Iso-ditridecylamine was synthesized by using iso-tridecanol and ammonia as raw materials and metal oxides as catalyst .

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