单键

如果这里有个单键，你觉得这是sigma键还是π键？

So if we have a single bond here , would you consider that a sigma bond or a pi bond ?

本文发现混合三聚双席夫碱与过渡金属离子Cu（Ⅱ）、Ni（Ⅱ）、VO（Ⅱ）作用时，配体发生碳氮单键断裂后形成亚胺配合物。

It has been found that the mixed trimeric double Schiff bases react with transitional metal ions such as Cu (ⅱ), Ni (ⅱ), VO (ⅱ) to form the inline complexes after the C-N single bond breaks in the part of ligands .

锕系元素单键半径R（1）公式的验证

Verification for the General Equation Calculating Single-Bond Radius R ( 1 ) of Actinides

纯金属单键半径R（1）的经验公式

An Empirical Formula of the Single - Bond Radius R ( 1 ) for Pure Metals

AB型化合物单键离子性百分数的量度

Estimation of the Fraction of Ionic Character for Single Bond in an AB Molecule

EXCEL单键实现Borda法组合评价

A Single Key to Implement Borda Combinational Evaluation by Microsoft EXCEL

在有机化合物中，C-F键是键能最高的单键之一。

C-F bond is one of the strongest single bonds in organic compounds .

反应溅射合成时需要解决的困难是在保持较低基片温度的同时如何提高反应气氛中的N原子含量，寻求高比例的sp3C&N单键的合成条件。

The difficulties needed to be resolved using the ion beam sputtering method are how to increase nitrogen concentration in the reactants at a lower substrate temperature and to find synthesis conditions to form a high concentration of sp ~ 3CN single bonds .

通过采用冗余的SAN基础结构、支持RAIDADG的存储系统、磁带库备份系统、关键服务器集群或多机方式、单键灾难恢复技术，构造了一个满足集成制造单元信息系统应用需求的基础数据环境。

Through the redundancy architecture of the SAN , the RAID ADG storage system , the backup system of the tape library , the cluster or multi-host of the key server , realizes the environment of the data .

证明了只有一个单键的同核双原子分子的排斥态只可能是Пu。态与∑u~+态，解释了排斥态的对称性，所得结果与实验结果完全符合一致。

It is proven that the repulsive states of homonuclear diatomic molecules can only be II and ∑ + u states , the symmetries of the repulsive states are explained , the obtained results are entire agreement with the experimental results .

让我们想想怎么来分类单键双键，和三键，这在我们在考虑sigma键，和π键是很有用的。

So let 's think about how we can classify single and double and triple bonds , which is what we 're really used to dealing with in terms of these sigma bonds and these pi bonds .

插入反应形成的CS3基团基本上共面，其CS键长比CS2中的键长明显加长，而比单键的CS键长要短，并在红外光谱上出现特征吸收峰。

The trithiocarbonate CS_3 group resulted from insertion of CS_2 into Ag S bond is approximately planar . The C S bond lengths of CS_3 are distinctly longer than that of uncoordinated CS_2 molecule and shorter than the single-bond length . Its IR spectrum was determined .

删除本质不连通Kekuléan多六隅图H中所有固定单键和双键的所有顶点后所得到的子图是不连通的，而且每个连通分支都是正规分支。

An essentially disconnected Kekul é an polyhex H , after deleting all the fixed single bonds and all the end vertices of the fixed double bonds of H , is disconnected , and has at least two normal components .

结果：用DDQ脱氢氧化叶绿素系列化合物的C17C18单键形成双键，从而合成卟啉类化合物。

Results : The C 17 - C 18 single bond of chlorophyll a was dehydrogenated with DDQ to form double bond , and the porphyrin derivative was obtained .

单键群（SLC）方法是分析地震活动性的一个有用的工具，根据SLC特征参量的时间滑移计算，对川滇地区的地震活动性特征和地震活动趋势进行了总结分析。

Single link Cluster ( SLC ) method is a useful tool in analyzing the seismicity . Based on time sliding calculation of SLC characteristic parameters , this paper analyzes the seismicity pattern and earthquake trend .

通过Pd-催化分子内二级酰胺的N-芳基化反应，又可以得到一个新的杂环，首次成功地用于合成以C-N单键连接两种不同杂环的轭合物。

Moreover , additional ring formation has been demonstrated by using the Pd-catalyzed intramolecular N-arylation of secondary amides , leading to the first synthesis of a novel class of heterocyclic conjugates tethered through a C-N single bond .

结果表明：OA理论得到的fcc-Au电子结构中的共价d电子数最少，从而导致fcc-Au具有最大的单键半径以及最大的原子体积；

The results show that it is the smallest number of covalent electrons in d state of fcc-Au among that of the three structures that leads to the biggest single bond radii and atomic volume .

含磷硫单键的有机化合物的合成方法

The Synthetic Methods of Organic Compounds with Phosphorus - Sulfur Bond

加工具有一定角度的齿轮单键槽的定位夹具的研制

A positioning fixture used for maching single angle keyway of gear

再论单键键槽对称度误差的检测与计算

Re-Dissertation on Measurement and Calculation of Single Keyway Symmetry Error

原子的单键半径随温度升高而增大；

The single bond radius increases with the elevating temperature ;

到目前为止，我们还只是，看到了成单键的情况。

So far we have looked only at the formation of single bonds .

利用单键群分析方法研究川滇地区近年来的地震活动

Study on seismicity in Sichuan-Yunnan region for recent years using SLC analysis method

单键立方相氮具有奇异的性质并有巨大的潜在应用价值。

Single-bonded cubic form of nitrogen has unique properties and enormous potential applications .

单键立方相氮的第一性原理研究

First-principles Study of the Single-bonded Cubic Phase of Nitrogen

嗯，我们预计在氢分子里会看到一个单键。

Yeah , we 'd expect to see a single bond in hydrogen .

用单键群方法研究中国地震时空分布的统计特征

Temporal and spatial statistical characteristics of earthquakes in China by single-link cluster method

共价单键离子性标度的探讨

The exploration on ionicity standard in covalent bond

单键群方法的算法研究和程序实现

Study on Single-Link Cluster Algorithm and Its Implementation

识别前震余震的单键群方法

Single-Link-Cluster Method to Distinguish the Pre-and After-shocks