锗杂芳香化合物研究进展

State of the Art in Germanium-Containing Aromatic Systems

锗杂共轭体系在有机光电材料领域有着广阔的应用前景.锗杂芳香化合物作为一类重要的锗杂共轭体系,同时还是碳基芳香化合物的重元素类似物,近年来引起了科学家们的极大兴趣并得以迅速发展.将锗杂芳香化合物按其所带电荷种类的不同分为电中性型、负电型及正电型三类,对其合成方法及化学反应性进行了归纳总结,着重对各化合物的芳香性判定的依据进行介绍.锗杂芳香化合物与碳基芳香化合物的结构特性与磁性质类似,但是二者的反应性却有较大的差别.对锗杂芳香化合物的总结不仅有利于新结构、新反应的开发,同时还有利于对"芳香性"这一概念的更深入的认识.

Germanium-containing conjugated compounds are regarded as powerful candidates for the development of optoe-' lectronic material.As a subclass of germanium-containing conjugated compounds and a crucial type,of the heavy analogues of aromatic compounds,germanium-containing aromatic hydrocarbons (Ge-AHs)have attracted much attention,and developed rapidly in recent days.,According to the charge of the Ge-AHs,these species were categorized into three subclasses:neutral; anionic and cationic species.Herein,the synthetic methodology together with the reactivity of these reportedGe-AHs is summarized and the parameters used for the evaluation of the aromaticity of these compounds is highlighted.Ge-AHs and aromatic hydrocarbons share similar structural and magnetic properties.However,their major reactivity is quite different.This review will not only inspire:the discovery of new structures and reactivities of Ge-Ahs,but also help to form a deeper understanding of the concept of aromaticy.