同分异构的

This method can be used to calculate the molar refraction of alkyne from molecular structure.

基团贡献法是根据分子中的基团计算分子性能的方法，具有适用范围广的特点，但对同分异构体的区分能力较差，对分子性能的计算结果误差较大。

For the two isomeric compounds ofα-pinene,these three tested bark beetle species were sensitive to(1S)--α-pinene of low concentration(0.0001μL/mL) and R--α-pinene of high concentration(10μL/mL).

3对于α-蒎烯的两种同分异构体(1S)--α-pinene与R--α-pinene，测试的3种小蠹虫均对低浓度(0.0001μL/mL)的(1S)--α-pinene敏感，而对高浓度(10μL/mL)的R--α-pinene敏感。

The S-L-E experiment data for the three groups of isomers were treated by using improved UNIFAC equation with new defining of some UNIFAC groups, we got better result.

采用改进的UNIFAC方程，利用新定义基团的方法，对已测定的同分异构体物系的二元固液相平衡数据进行了处理并取得了较好的回归结果。

Given the heats of hydrogenation below for isomers A and B, would you say that an exocyclic double bond or an endocyclic one is more stable

答：给出了互为同分异构体的A和B的氢化值，你能否说出环外的双键和环内的双键哪一个更稳定吗

In this part, the densities of sodium benzoate, sodium nitrobenzoate, sodium chlorobenzoate and sodium methylbenzoate in DMFwater mixed solvents have been measured at 298.15K with an Anton Paar Model 55 densimeter. From these densities, apparent molar volumes and partial molar volumes have been calculated, transfer volumes from water to DMF-water mixtures and substituent contributions to the transfer volumes have also been obtained. Solvent and substituent effects are discussed in detail. The Scaled Partical Theory has been applied to the ternary solutions to evaluate the partial molar volumes of cavity formation and the volumes change associated with solute-solvent interaction.

选择了含有取代基团的芳香类有机电解质，主要是苯甲酸钠、硝基苯甲酸钠、氯苯甲酸钠和甲基苯甲酸钠的邻、间、对同分异构体作为研究对象，用DMA 55型振荡管密度计测定了它们在不同质量百分数组成的DMF-水混合溶剂中的密度，利用这些密度数据，计算了表观摩尔体积和偏摩尔体积，得到了这些单取代苯甲酸钠从水到DMF-水混合溶剂中的迁移偏摩尔体积及苯环上不同位置的取代基对迁移偏摩尔体积的贡献值，讨论了溶剂效应和取代基效应，并将定标粒子理论应用于此三元电解质溶液中。

On the other hand, Pb~ coordination polymers with 1,4-nda and 2,6-nda exhibit the distinct 3-D 5-connected network and 3-fold interpenetrated diamond framework, revealing the isomeric effect of such tectons.

另外萘二酸的同分异构效应对晶体结构的影响可以在两个由1，4-nda和2，6-nda构筑的pb~化合物中看出(5和6)，它们表现出截然不同的5-连接三维结构和三重互穿金刚石拓扑结构。

Alkylation of C6D6 with 1-dodecene using Br-ALCl3 as a catalyst was firstly carried out. Molecular structures of products, dodecylbenzene isomers, were analyzed by GC-MS and NMR, and the deuterated atom in the dodecylbenzenes was verified to be connected with 1-carbon of the side chain.

首先进行了Br-AlCl3催化氘代苯与1-十二烯烃的反应，通过GC-MS及NMR分析产物十二烷基苯同分异构体的结构，验证了氘原子与产物侧链1-位碳相连的结论。

Structural analysis of organic compounds commonly used in the isomers of the analysis of the phenomenon.

而结构分析则常用于有机物的同分异构现象的分析。

However, there is little work reported on the separation ofα-olefins and other internal olefins.

对于不同烯烃之间的分离，特别是沸点相近的同分异构体烯烃之间的分离，国内外报道均不多。

The solubilities of the phthalic acid isomers in water were summarized and the parameters of the combinatorial part of UNIFAC activity coefficient model were calculated based on solid-liquid equilibrium calculations.

总结了三种同分异构体苯二甲酸在水中的溶解度数据，并基于固液平衡计算关联了UNIFAC活度系数模型中组合项的分子参数。

Certain types of sockets are ''connectionless'', most commonly

某些类型的套接字是无连接的，大多数是UDP协议。

Take it in to his nibs yourself .

你自己拿进去给头儿吧。