...者签名: 忙掘侈 日期 a先gt.j.阳 第一章芳香性的概念、判据及单环硼氮化合物芳香性研究的意义 1.1前言 芳香性(Aromaticity)是有机化学中最古老而又最核心的概念之‘。
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文章摘要信息 关键词 : 13C CP/MAS/TOSS NMR ESR 不同煤阶的煤 芳香度 液化产物 [gap=1050]Keywords : 13C CP/MAS/TOSS NMR ESR coal aromaticity liquefaction
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anti-aromaticity 反芳香性
calculated carbon aromaticity index 计算碳芳香度指数
topo-aromaticity 拓扑芳香性
Hückel aromaticity 休克尔芳香性规则
Material Aromaticity 物质的芳香性
aromaticity of coals 煤的芳香性
Aromaticity-constituents 芳香性组分
The calculation results indicated that the Thiocarbons of three membered rings and a few five membered rings showed aromaticity, while that of four and most five membered rings basically showed no aromaticity.
计算结果表明,三元环和少数五元环具有芳香性,而四元环和大部分五元环基本不具有芳香性。
参考来源 - 嘌呤衍生物的结构及性质的理论研究According to the principles of surfactants interfacial chemistry, it can be explained reasonably by the structure characters such as hydrocarbon chain length, degree of branching, aromaticity and the number of sulfonate group.
根据表面活性剂的界面化学原理,从各组分碳氢链长度、支化度、芳香度及磺酸基数等结构方面的特征对以上现象进行讨论。
参考来源 - 提高采收率用石油磺酸盐应用性能研究·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
N the property of certain planar cyclic conjugated molecules, esp benzene, of behaving like unsaturated molecules and undergoing substitution reactions rather than addition as a result of delocalization of electrons in the ring 一种平面环形成共轭分子的特性; 尤指苯
To have a good characterization of heavy hydrocarbons, the aromaticity correlation index has been developed on the basis of a wide range of data.
为更好地表征重烃,以广泛的数据为基础,开发了芳香度关联指数aci。
The structural unit of extract consists primarily of aromatic rings and cycloparaffinic rings. The average molecular weight of the extract is 448. The aromaticity is 0.53.
萃取物的结构单元主要由芳环和脂环所构成,萃取物的平均分子量为448,芳碳率为0.53。
Topological resonance energy (TRE) and bond resonance energy (BRE) methods were applied to all the open structure isomers (both cations and anions) of C36CH2 to investigate their aromaticity.
用键共振能和拓扑共振能方法对富勒烯C36CH2开环结构中的所有可能异构体及其阳离子和阴离子芳香性进行了研究。
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