Issue 2, 2021

Synthesis, crystal structure and charge transport characteristics of stable peri-tetracene analogues

Abstract

peri-Acenes have shown great potential for use as functional materials because of their open-shell singlet biradical character. However, only a limited number of peri-acene derivatives larger than peri-tetracene have been synthesized to date, presumably owing to the low stability of the target compounds in addition to the complicated synthesis scheme. Here, a very simple synthesis route for the tetrabenzo[a,f,j,o]perylene (TBP) structure enables the development of highly stable peri-tetracene analogues. Despite a high degree of singlet biradical character, the compounds with four substituents at the zigzag edge show a remarkable stability in solution under ambient conditions, which is better than that of acene derivatives with a closed-shell electronic configuration. The crystal structures of the TBP derivatives were obtained for the first time; these are valuable to understand the relationship between the structure and biradical character of peri-acenes. The application of peri-acenes in electronic devices should also be investigated. Therefore, the semiconducting properties of the TBP derivative were investigated by fabricating the field-effect transistors.

Graphical abstract: Synthesis, crystal structure and charge transport characteristics of stable peri-tetracene analogues

Supplementary files

Article information

Article type
Edge Article
Submitted
26 avq 2020
Accepted
13 okt 2020
First published
14 okt 2020
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2021,12, 552-558

Synthesis, crystal structure and charge transport characteristics of stable peri-tetracene analogues

M. Mamada, R. Nakamura and C. Adachi, Chem. Sci., 2021, 12, 552 DOI: 10.1039/D0SC04699J

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