• 具有多重碳-大分子燃烧涉及到一系列复杂的反应。

    The combustion of larger molecules, which have multiple carbon-carbon bonds, involves a more complex series of reactions.

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  • 这些分子燃烧起来汽油干净部分原因是它们-更少如果有的话),而且它们排放氢化合物不太可能产生臭氧

    These molecules burn more cleanly than gasoline, in part because they have fewer, if any, carbon-carbon bonds, and the hydrocarbons they do emit are less likely to generate ozone.

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  • 这些分子燃烧起来汽油清洁部分原因是它们-更少或者不存在,而且它们排放氢化合物产生臭氧可能性更小。

    These molecules burn more cleanly than gasoline, in part because they have fewer, if and, carbon-carbon bonds, and the hydrocarbons they do emit are less likely to generate ozone.

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  • 羰基化合物还原偶合形成碳-一种重要方法

    The reductive coupling of carbonyl compounds constitutes an important method for the formation of carbon-carbon bonds.

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  • 有机锌试剂与羰基化合物反应有机合成中是形成-一种重要的方法。

    Organozincs are an important class of organometallics for the formation of C-C bonds.

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  • 发现反应邻位氟取代为底物的情况下,-可以被打断并有效地形成碳-

    A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.

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  • 有机卤代物光反应作为构建-碳-杂原子一种重要途径已经得到广泛和深入研究

    As an important approach of carbon-carbon bond formation and carbon-heteroatom bond formation, photochemistry of organic halides has been studied extensively.

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  • 此外提高正己烷转化率,乙烯和丙烯产物选择性,氧作用在于促进烷烃脱氢并引发-断裂反应

    Presence of oxygen turns the reaction from thermo-dynamically unfavorable to favorable. In addition, oxygen in the gas phase may lead to an increase in he-cane c

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  • 本文就结合物形成碳-交叉偶联反应中的性能活性探索和研究。并对合成产物进行了光谱分析及测试。

    Catalytic actiVity of Nickel complexes in the cross-coupling reaction for forming C-C bond have been studied. Gived spectra analysis date of ketones.

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  • 这些分子要比汽油燃烧得更为清洁部分是因为他们碳-较少而且即使会释放出氢化合物不太可能会成为臭氧。

    These molecules burn more cleanly than gasoline, in part because they have fewer, if any, carbon-carbon bonds and the hydrocarbons they do emit are less likely to generate ozone.

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  • 生物似乎利用一切可能的化学途径获取能量生成,”黑曾

    "Life seems to exploit every possible chemical pathway to obtain energy and make carbon-carbon bonds," says Hazen.

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  • 看起来整洁不少,如果我们把氰化氢的路易斯结构画成这样的话,这样我们就有之间的之间,然后还有一对孤对电子这里

    So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.

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  • 一个理想的替代方法生产液态氢化合物,使更多能量可以储存里。

    A desirable alternative is to produce liquid hydrocarbons such as alcohols, as far more energy can be stored in the carbon-carbon bond.

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  • 如果我们乙烷分子我们首先,之间sigma

    If we have the molecule ethane, then what we're going to have first is our sigma bond that we described between the two carbons.

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  • 如果我们考虑这个分子什么,我们有六个sigmasp2

    So, if we think about what bonds are in this molecule, sp2 we actually have six of these sigma carbon s p 2, carbon s p 2 bonds.

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  • 本文主要介绍有机硼试剂包括烷基,烯基硼烷及一些四价硼酸盐类形成中的应用

    The review deals mainly with the application of organoboron reagents including aikylboranes, vinylborancs and some organoborates in carbon-carbon bond formation.

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  • 过渡金属催化反应构建有效方法之一有机合成具有广泛应用

    The transition metal-catalyzed cross-coupling reaction is one of the most effective methods for construction of carbon-carbon bonds and has found widespread use in organic synthesis.

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  • 三氯化铁作用下的类似断裂反应见相关文献报道

    To our knowledge, the similar FeCl3-mediated carbon-carbon bond cleavage was not reported before.

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  • DLC薄膜表面高低取决于表面粗糙度的变化。

    The surface energy of DLC films is dependent on the carbon bonds and surface roughness.

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  • 我们这里共有四个氢原子,我们可以考虑怎么-描述

    So we can have four total hydrogens bonding here, - and we can think about how to describe these carbon - carbon bonds.

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  • 形成反应有机合成中占有非常重要的地位。

    Carbon-carbon bond forming reactions are most important transformations in organic synthesis.

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  • 因此,它们不仅鉴别此类化合物结构提供有力依据而且还能推断未知化合物的类型状态。

    Therefore, not only a forceful basis may be provided for distinguishing various structures of these compounds but also carbon bonded types and carbon bonded state of unknown compounds can be deduced.

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  • 催化不对称1,4-共轭加成反应一种非常有效的形成方法。

    In this paper, the recent progress in rhodium-catalyzed asymmetric 1,4-conjugate addition reactions is reviewed.

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  • -的合成方法学。

    Fluorinated carbon - carbon triple bond formation.

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  • 我们来看看乙炔例子我们两个原子,成每个一个氢相连

    So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.

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  • 芳烃环芳烃化合物生成反应一直有机化学有机金属化学研究领域中的主要课题

    Carbon-carbon bond forming reactions of arenes and heteroarenes are always the major topics in organic chemistry and organometallic chemistry.

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  • 报道纤维素 -配合有机试剂氯化合物形成-交叉偶联反应中的催化作用对部分反应条件及反应机理进行了研究和探讨。

    The catalytic action of cellulose oxyphosphine palladium complexs in the crosscoupling reaction of organotin reagents with acid chlorides for forming C-C bond is presented.

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  • 平面四配位过去二十中,平面四配位作为新颖类型已经用于设计各种新颖纳米结构

    Tetracoordinate Planar Carbon: As a novel bonding species of carbon, the tetracoordinate planar carbon has been used to design various new nanostructures in the past 20 years.

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  • 平面四配位过去二十中,平面四配位作为新颖类型已经用于设计各种新颖纳米结构

    Tetracoordinate Planar Carbon: As a novel bonding species of carbon, the tetracoordinate planar carbon has been used to design various new nanostructures in the past 20 years.

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