芳香性

分子轨道理论和周环反应：关于化学键和芳香性的现代概念

Molecular Orbital Theory and Pericyclic Reactions : Modern concepts of bonding and aromaticity .

然而自从以C（60）位代表的富勒烯的被发现以后，三维芳香性逐渐成为人们的研究热点。

After C60 was discovered in 1985 , three-dimensional aromaticity has been the issue .

本文介绍了采用超临界CO2萃取新鲜柚子花中芳香性成分，并用气相色谱-质谱联用仪对其中化学成分进行分析鉴定。

The article introduced that fragrant ingredients from fresh flower of pomelo was extracted by supercritical CO 2 , and analyzed by gas chromatography-mass spectrometry ( GC-MS ) .

用~（13）C-NMR和~1H-NMR波谱法对几种芳香性重质油馏份的结构解析

Structural analysis of some aromatic heavy fractions by ~ ( 13 ) c-and ~ 1h-nmr spectroscopy

流化床燃烧PAHs低温由高环芳香性物质的热分解和缩聚反应生成，高温由小分子烃类的聚合。

During fluidized bed combustion , decomposition and condensation reactions are the main PAHs formation pathway at low temperature and polymerization of small hydrocarbons at high temperature .

相反，在C-H键活化机理中，所有驻点中的苯环均保持反芳香性。

In contrast , the benzene ring exhibits anti-aromaticity in the stationary points of the C-H bond activation mechanism .

初论某些[Mo3S4]~（4+）簇合物中[Mo3S3]非平面簇环的类芳香性本质

A Preliminary Discussion of the Nature of Quasi-Aromaticity in the Non-Planar Puckered [ Mo_3S_3 ] Rings of Certain [ Mo_3S_4 ] ~ ( 4 + ) Clusters

本论文包括两个方面的研究内容：（1）铑催化的氧化导向基团控制的芳香性C-H官能团化反应机理研究。

The whole thesis contains two research contents : ( 1 ) The mechanistic research of internal oxidant directing group-controlledRh ( III ) - catalyzed aromatic C-H functionalization .

介绍了新鲜柚子花中芳香性成分超临界CO2萃取分离工艺和分析检测方法，重点探讨了压力、温度、时间对萃取率的影响。

The article introduced the technology of supercritical CO_2 extraction of fragrant ingredients from fresh flower of pomelo and analysis method by gas chromatography and mass spectrometry ( GC-MS ), putting emphasis on the effects of pressure , temperature and time on extraction ratio .

苯环中心的核独立化学位移（NICS）值表明，加成消除机理中，所有驻点中苯部分或苯基中的苯环均保持其芳香性。

The predicted nuclear independent chemical shift ( NICS ) values of benzene ring indicate that the benzene ring keeps its aromaticity throughout the addition-elimination mechanism .

根据自旋偶合价键法计算结果，提出苯型烃的芳香性新模型&对偶圈（SCC）模型，它包括SCC概念、SCC结构及SCC法；

In the light of the computational results of spin-coupled valence bond method a new model of aromaticity of benzenoid hydrocarbons-the symmetric coupling circuit ( SCC ) model-is proposed ; and this model involves concept SCC , SCC structure , and SCC method .

由于HPO-A及HPI组分是二级出水DOM中芳香性贡献最大的两个组分，因此对HPO-A及HPI组分的有效去除对控制出水水质意义重大。

HPO-A and HPI fractions were the major contribution components of aromatic material in Secondary effluent . Therefore , the effective removal of HPI and HPO-A fractions was important to the control of water quality .

作为约束条件，把芳香性的识别算法应用于ESESOC系统中结构的穷举生成，得到了较好的结果。

It have been used as constraints of Expert System on Elucidation Structure of Organic Com-pounds ( ESESOC ) and a good result has been achieved .

分析6种判断化合物是否具有芳香性的规则即Dewar共振能、休克尔规则、汉斯的REPE指标、PMO判据、推广的休克尔规则及物理方法，并对各种判据的局限性和优点作了比较。

Six major criteria of aromaticity , namely Dewar resonance energy , Huckel rule and Hess 's REPE index , PMO criterion , extended Huckel , rule and physical method , were introduced . The limitations and advantages of them were discussed in this paper .

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。

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 .

芳香性药物不同煎煮时间有效成分的检测

Detection of Effective Components on Aromatic Herbs at Different Coction Time

焦脱镁叶绿酸-a甲酯的芳香性和亲电反应的区域选择性

Aromaticity and District Selectivity in Electrophilic Reaction of Methyl Pyropheophorbide-a

自然键轨道方法研究分子的芳香性

Studies on Molecular Aromaticity by Means of Natural Bond Orbitals

芳香性团簇的结构和光谱性质的理论研究

Theoretical Study of Structure and Spectrum Properties of Aromatic Clusters

它们的过渡态是离域双同芳香性的。

However , their transition states are delocalized and bishomoaromatic .

气相色谱-质谱法分析小缬草的芳香性成分

Analysis of the essential oil in Valeriana tangutica by Gas Chromatography-Mass Spectrometry

金属非金属金属夹心型化合物：平面外σ-芳香性和电学性质

Metal-Nonmetal-Metal Sandwiches : Out-of-Plane σ - Aromaticity and Electric Properties

硼团簇与环丙烷芳香性的价键理论方法研究

A Valence Bond Study of the Aromaticity of Boron Clusters and Cyclopropane

用改良片山电子计算机法对几个芳香性重油馏份的结构解析

Structural analysis of some aromatic fractions using newly improved Katayama computer method

侧链芳香性氨基酸残基大多数暴露在分子表面。

Most of aromatic residues are exposed on the surface .

不同芳香性重馏分油对渣油加氢过程影响的研究

Effect of Aromatic Heavy Gas Oil on Residue Hydrotreating Reactions

超临界柚子鲜花芳香性成分的研究

Study on the Fragrant Ingredients from Fresh Flower of Pomelo

芳香性判据研究进展

The Development of the Study on the Criteria of Aromaticity

两种非芳香性磺酸盐驱油剂的合成及应用

Preparation and application of two novel nonaromatic sulphonate oil-displacing agents

共轭环烯芳香性的极限研究

Studies on the limit of aromaticity of conjugated cyclenes