This review summarizes syntheses of S,N-heteropentacenes, i.e. electron-rich sulfur and nitrogen-embedding pentacycles, and briefly highlights selected applications in molecular electronics. Depending on the anellation mode and the number of incorporated heteroatoms, electron density can be raised by increasing nitrogen incorporation and polarizability is manifested by the sulfur content. In comparison to triacene analogues, the conjugation pathways of S,N-heteropentacenes are increased and the favorable acene-typical crystallization behavior allows for diverse application in organic electronics. Furthermore, substitution patterns allow fine-tuning the electronic properties, extending the π-systems, and supplying structural elements for further application.1 Introduction2 Thiophene-Centered S,N-Heteropentacenes2.1 Dipyrrolo-Fused Thiophenes2.2 Diindolo-Fused Thiophenes3 Pyrrole-Centered S,N-Heteropentacenes3.1 Dithieno-Fused Pyrroles3.2 Bis[1]benzothieno-Fused Pyrrole4 Fused 1,4-Thiazines4.1 Dinaphtho-Fused 1,4-Thiazines4.2 Bis[1]benzothieno-Fused 1,4-Thiazines5 Conclusions and Outlook

中文翻译：

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S，N-杂戊烷-富电子的五元五环的合成

这篇综述总结了S，N-杂戊烷的合成，即富含电子的硫和氮嵌入的五环，并简要介绍了分子电子学中的选定应用。取决于阳极模式和掺入的杂原子数，可以通过增加氮的掺入来提高电子密度，并且极化率可以通过硫含量来体现。与并三苯类似物相比，S，N-异戊烷的共轭途径增加，并且有利的并苯典型结晶行为允许其在有机电子中的多种应用。此外，取代模式可以微调电子性质，扩展π系统，并提供结构元素以供进一步应用。1引言2以噻吩为中心的S，N-叔戊二烯2.1吡咯并噻吩2。