摘要/Abstract

含四元环的多环芳香化合物通常能够表现出独特的光物理和化学性质, 在很多领域具有潜在应用价值. 分别针对线型、角型、螺旋型和环型含四元环多环芳香化合物的合成方法、分子堆积方式、光电性质及载流子迁移率等方面进行归纳总结. 研究表明, 表面合成法更利于制得规则形貌的多环芳香化合物; 线型类分子表现出了较高的载流子迁移率; 角型分子通常显示出更高的反芳香性; 螺旋型分子具有好的旋光性及更大的光学带隙, 且该类材料中四元环的个数及其所在分子中的位置对材料的光电性质有着决定性的影响.
关键词: 多环芳香化合物, 有机共轭化合物, 四元环, 反芳香性
Polycyclic aromatic compounds containing four-membered rings usually exhibit unique photophysical and chemical properties, and have potential application value in many fields. The synthesis methods, intermolecular stacking behaviors, photoelectric properties and carrier mobilities of linear, angular, helical, and ring-shaped polycyclic aromatic compounds containing four-membered rings are reviewed. The research shows that the surface synthesis method is more conducive to the preparation of regular-shaped polycyclic aromatic compounds, linear molecules show higher carrier mobilities, angular molecules usually show higher anti-aromaticity, and helical molecules have optical rotation properties and a larger optical band gap. It should be emphasized that the numbers of four-membered rings and its position in molecules have a decisive influence on their photoelectric properties.
Key words: polycyclic aromatic compound, organic conjugated compound, four-membered ring, anti-aromaticity


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