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- Keywords structural descriptor;topological-quantum matrix;refractive index;monosubstituted alkanes; 结构参数;拓扑-量子矩阵;折光率;单取代烷烃;
- monosubstituted alkanes 单取代烷烃
- The alkanes are generally inert to ionic reagents. 烷烃一般说来对离子型试剂是不活泼的。
- The main constituents were alkanes and esters. 小叶三点金全草主要含有烷烃和酯类化合物。
- Alkanes are resistant to attack by oxidizing agents generally. 烷烃一般对于氧化剂的作用是稳定的。
- Monosubstituted alkane 单取代烷烃
- The general uses of alkanes may be divided into three categories. 烷的一般用途可分为三个方面。
- The alkanes form a homologous series of general formula ???? 烷形成是有通式???降耐0系列。
- The straight-chain alkanes exacerbate the problem of engine "knock". 直链烷烃使机器的“爆震”问题更加严重。
- The results show that lnH of alkanes and aro-matic hydrocarbons decreases w... 结果证明：亨利系数随着溶质碳数和溶剂碳数的增加而减少。
- This fact shows that MTBE and ethanol retard the oxidation of alkanes. 这表明，在燃烧的起始阶段， MTBE 、乙醇有抑制烷烃燃烧的作用。
- The straight-chain alkanes exacerbate the problem of engine " knock ". 直链烷烃使机器的“爆震”问题更加严重。
- As so far, there is just a little of literature of L252 monosubstituted hydantoin, and the details of the racemization of hydantoin are not revealed. 目前关于52单取代海因的消旋的文献非常少,海因消旋的细节问题也没有被完全揭示。
- Therefore, the auto racemization of L252 monosubstituted hydantoin is an important step of the production of L2 or D2N2 carbamoylase. 因此,52单取代海因的自发消旋成为L2或D2N2氨甲酰氨基酸生产中的一个重要的步骤。
- Chemical fossils (e.g. alkanes and porphyrins) are often the only evidence for life in rocks of PRECAMBRIAN age. 化学化石（烷烃和卟啉）是前寒武纪地层中生命存在的唯一证据。
- The gradation in the physical properties of the alkanes is typical of a homologous series. 烷烃物理性质的逐渐变化是同系列的特点。
- Other components are the homologous alkanes, ethane, propane, and higher hydrocarbons. 其他组分有同系烷、乙烷、丙烷以及高分子碳氢化合物。
- Alkanes can be chlorinated or brominated by treatment with chlorine or bromine in the presence of visible or uv light. 烷在可见光或紫外光照射下，用氯或溴处理才能氯化或溴化。
- A group bond contribution model using artificial neural networks was established to predict the flash points of alkanes. 建立了一个基于人工神经网络方法的基团键贡献模型,用于预测烷烃闪点。
- In this paper, the author investigate the anion of 2-nitropropane reacts with 7, 7-dichlorobicyclo[4. 1. 0] heptane in DMF to give monosubstituted product. The mechanism involves SRN1 reaction. 本文研究了7，7-二氧双环[4．1．0]庚烷与2-硝基丙烷阴离子在DMF中的反应．生成单取代产物，机理涉及SRN1机理。
