Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds: Synthetic Routes, Properties, and Applications

Two-dimensionally extended, polycyclic heteroaromatic molecules (heterocyclic nanographenes) are a highly versatile class of organic materials, applicable as functional chromophores and organic semiconductors. In this Review, we discuss the rich chemistry of large heteroaromatics, focusing on their synthesis, electronic properties, and applications in materials science. This Review summarizes the historical development and current state of the art in this rapidly expanding field of research, which has become one of the key exploration areas of modern heterocyclic chemistry.

Metal assisted cyclomerization of benzodipyrrins into expanded norroles, aza-heptalene and acyclic dimers

In the presence of metal salt, N-confused monobenzo-dipyrrin cyclomerize to yield an unusual acyclic dimer and an expanded norrole, while doubly N-confused monobenzo and dibenzo-dipyrrins cyclodimerized into aza-heptalene and acyclic dimer respectively.

New advances in nanographene chemistry

This review discusses recent advancements in nanographene chemistry, focusing on the bottom-up synthesis of graphene molecules and graphene nanoribbons.