具有多重碳-碳键的大分子的燃烧涉及到一系列更复杂的反应。
The combustion of larger molecules, which have multiple carbon-carbon bonds, involves a more complex series of reactions.
这些分子燃烧起来比汽油更干净,部分原因是它们的碳-碳键更少(如果有的话),而且它们排放的碳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.
这些分子燃烧起来比汽油更清洁,部分原因是它们的碳-碳键更少或者不存在,而且它们排放的碳氢化合物产生臭氧的可能性更小。
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.
羰基化合物还原偶合是形成碳-碳键的一种重要方法。
The reductive coupling of carbonyl compounds constitutes an important method for the formation of carbon-carbon bonds.
有机锌试剂与羰基化合物的反应在有机合成中是形成碳-碳键的一种重要的方法。
Organozincs are an important class of organometallics for the formation of C-C bonds.
发现该反应在以邻位氟取代的苯睛为底物的情况下,碳-氟键可以被打断并有效地形成碳-碳键。
A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.
有机卤代物的光反应作为构建碳-碳键和碳-杂原子键的一种重要途径已经得到了广泛和深入的研究。
As an important approach of carbon-carbon bond formation and carbon-heteroatom bond formation, photochemistry of organic halides has been studied extensively.
此外气相氧可提高正己烷转化率,乙烯和丙烯产物选择性,氧的作用在于促进烷烃脱氢并引发碳-碳键断裂反应。
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…
本文就镍结合物在形成碳-碳键交叉偶联反应中的性能及活性做了探索和研究。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.
这些分子要比汽油燃烧得更为清洁,部分是因为他们碳-碳键较少,而且即使会释放出碳氢化合物,也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.
“生物似乎利用一切可能的化学途径来获取能量并生成碳碳键,”黑曾说。
"Life seems to exploit every possible chemical pathway to obtain energy and make carbon-carbon bonds," says Hazen.
这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话,这样我们就有氢与碳之间的单键和碳与氮之间三键,然后还有一对孤对电子在氮这里。
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.
一个理想的替代方法是生产液态碳氢化合物如醇,使更多的能量可以储存在碳碳键里。
A desirable alternative is to produce liquid hydrocarbons such as alcohols, as far more energy can be stored in the carbon-carbon bond.
如果我们有乙烷分子,那我们首先有,碳碳之间的sigma键。
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.
如果我们考虑这个分子里都有什么键,我们有六个sigma碳,碳sp2键。
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.
本文主要介绍有机硼试剂,包括烷基硼烷,烯基硼烷及一些四价硼酸盐类,在碳碳键形成中的应用。
The review deals mainly with the application of organoboron reagents including aikylboranes, vinylborancs and some organoborates in carbon-carbon bond formation.
过渡金属催化的偶联反应是构建碳碳键的最有效的方法之一,在有机合成中具有广泛的应用。
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.
三氯化铁作用下的类似碳碳键断裂反应未见相关文献报道。
To our knowledge, the similar FeCl3-mediated carbon-carbon bond cleavage was not reported before.
DLC薄膜表面能高低取决于表面碳碳键与粗糙度的变化。
The surface energy of DLC films is dependent on the carbon bonds and surface roughness.
我们这里一共有四个氢原子成键,我们可以考虑怎么来-,描述碳碳键。
So we can have four total hydrogens bonding here, - and we can think about how to describe these carbon - carbon bonds.
碳碳键的形成反应在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.
因此,它们不仅对鉴别此类化合物的结构可提供有力的依据,而且还能推断未知化合物的碳键类型与碳键状态。
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.
铑催化不对称1,4-共轭加成反应是一种非常有效的碳—碳键形成方法。
In this paper, the recent progress in rhodium-catalyzed asymmetric 1,4-conjugate addition reactions is reviewed.
含氟碳-碳叁键的合成方法学。
让我们来看一看乙炔的例子,我们有两个碳原子,成三键,每个碳和一个碳一个氢相连。
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.
芳烃和杂环芳烃化合物的碳碳键生成反应一直是有机化学和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.
报道了纤维素氧膦 -钯配合物在有机锡试剂与酰氯化合物形成碳 -碳键的交叉偶联反应中的催化作用 ,并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.
平面四配位碳 :在过去的二十年中,平面四配位碳作为碳的新颖成键类型,已经被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.
平面四配位碳 :在过去的二十年中,平面四配位碳作为碳的新颖成键类型,已经被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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