"One - pot" carbon - carbon double bond formation.
“一锅”法的碳-碳双键形成反应。
Fluorinated carbon - carbon triple bond formation.
含氟碳-碳叁键的合成方法学。
Describe peptide bond formation and its structure in great detail.
请详细描述肽键的形成与其结构。
The compounds play a favourable role in the auxoaction for the bond formation of C-C and C-N.
将该肟膦化合物用作配体,可分别对C-C和C-N键的形成起到很好的促进作用。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
关环转换反应是形成碳碳双键的重要反应之一,即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
The transition can be achieved by a combined effect of the broken mirror symmetry and bond formation between the flattened faces in the squashed nanotubes.
这种转变在两种因素的共同作用下得以发生,即外加压力造成碳纳米管镜像对称破缺,以及被压碳纳米管两侧原子发生成键相互作用。
As an important approach of carbon-carbon bond formation and carbon-heteroatom bond formation, photochemistry of organic halides has been studied extensively.
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。
The review deals mainly with the application of organoboron reagents including aikylboranes, vinylborancs and some organoborates in carbon-carbon bond formation.
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。
Recently years, the assembly of supramolecular compounds having special structure and function from simple building blocks directed by hydrogen bond formation has attracted widespread attentions.
利用氢键将有机小分子建筑块组装成具有特定结构的超分子成为近年来十分活跃的研究领域。
Artificial lights block formation of molecules that bond with air pollutants to clear the air.
人工照明系统阻碍了空气污染物与水分子的结合,起到了净化空气的作用。
Electrovalence: valence characterized by the transfer of electrons from atoms of one element to atoms of another during the formation of an ionic bond between the atoms.
电价:在原子间形成离子键的过程中,由电子从一种元素的原子转移到另一种元素的原子所表示的价。
Bond-parametric function and size-factor are used to study the formation law of alloy quasicrystals based on the fourth long period transition metals.
利用键参数函数和尺寸因数对第四长周期过渡族金属元素基准晶形成规律进行研究。
There are two general methods for the formation of peptide bond, i. e. amino activation or carboxylic group activation.
形成肽键的基本方法,可以活化氨基也可以活化羧基,但是迄今为止普遍使用的都是活化羧基的方法。
DAST is one of the most important fluorinating agents in this century. This paper has summarized the recent advances in the formation of C-F bond by DAST.
DAST试剂是本世纪开发的最重要的氟化试剂之一,本文综述了利用该试剂形成碳-氟键的新进展。
The key reactions included the formation of 9, 15-cyclopropyl function and double bond migration in the a ring to reestablish the GA skeleton.
本合成工作的关键为9,15环丙基的形成及在重建GA骨架时a环中双键的重排反应。
When using CBL-VDL logging information to carry out cement bond evaluation, formation wave energy is major sign to reflect the second interface cement degree.
在利用CB L-VDL测井资料进行水泥胶结评价时,地层波能量是反映第二界面水泥胶结好坏的主要标志。
Therefore, the spin pairing is not cause of the formation of covalent bond, it is not also condition of first determining, the spin pairing is the only particularity of covalent bond of two electrons.
因此,电子自旋配对不是共价键形成的原因,也不是先决条件,电子自旋配对只是双电子共价键的一个特点。
Hydrogen bond, hydrophobic interaction and electrostatic interaction were major forces in the formation of SPI gels.
氢键、疏水相互作用和静电相互作用是形成大豆分离蛋白凝胶的主要作用力。
The effect of carbon content of the base metal on the welded bond structure, formation mechanism of the "austenitic-rich zone" and "hydrogen-induced disbonding" etc.
研究了母材碳含量对熔合区形态的影响、“富奥氏体区”形成机理和“氢蚀剥离开裂”产生机理等。
A C-F cleavage reaction was found when using ortho-fluoro substituted benzonitrile, which resulted in the formation of new C-C bond.
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。
According to the experimental and calculation results, the enthalpies of formation of the ions and some bond energies have been evaluated.
结合实验和理论计算结果,估算了离子的标准生成焓和键解离能。
In case the modifier contains special molecular structure that facilitates the formation of hydrogen bond, the extraction yield will increase.
夹带剂中易形成氢键的特殊分子结构,可提高萃取率。
The UV absorption spectrum shows that the interaction between gossypol and DNA does not result in the formation of a covalent bond or a charge transfer complex.
紫外吸收光谱显示棉酚与DNA相互作用没有共价键形成。 也不生成电荷迁移络台物。
The formation of peptide bond starts with reactionof a protected amino acid molecule with chloromethyl group on thesurface of the polystyrene polymer.
在去除保护的官能基之后,一个个新的氨基酸分子便产生来增加其肽的化学键。
The variation of heat of formation and O-H bond lengths with the adsorption distance have been calculated . The results show that there are two active adsorption site on the model zeolite.
通过模拟计算确定了两个低能吸附位点及相应的吸附热,结果与实验值非常接近。
O. M. were also discussed. The results indicated that formation of intermolecular hydrogen bond between them was the main interaction of the complex, and it was not neglectful.
并初步讨论了有机小分子对体系的影响,结果表明分子间氢键是主要作用力不容忽视。
O. M. were also discussed. The results indicated that formation of intermolecular hydrogen bond between them was the main interaction of the complex, and it was not neglectful.
并初步讨论了有机小分子对体系的影响,结果表明分子间氢键是主要作用力不容忽视。
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