Volume 134, Issue 1 e202112794
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Synthesis, Aromaticity, and Application of peri-Pentacenopentacene: Localized Representation of Benzenoid Aromatic Compounds

Dr. Tanguy Jousselin-Oba

Dr. Tanguy Jousselin-Oba

Institut Lavoisier de Versailles, UMR CNRS 8180, University Paris-Saclay, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France

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Dr. Masashi Mamada

Corresponding Author

Dr. Masashi Mamada

Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Nishi, Fukuoka, 819-0395 Japan

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Dr. Karen Wright

Dr. Karen Wright

Institut Lavoisier de Versailles, UMR CNRS 8180, University Paris-Saclay, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France

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Dr. Jérome Marrot

Dr. Jérome Marrot

Institut Lavoisier de Versailles, UMR CNRS 8180, University Paris-Saclay, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France

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Prof. Chihaya Adachi

Prof. Chihaya Adachi

Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Nishi, Fukuoka, 819-0395 Japan

International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Nishi, Fukuoka, 819-0395 Japan

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Dr. Abderrahim Yassar

Dr. Abderrahim Yassar

LPICM, UMR CNRS 7647, Ecole Polytechnique, 91128 Palaiseau Cedex, France

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Dr. Michel Frigoli

Corresponding Author

Dr. Michel Frigoli

Institut Lavoisier de Versailles, UMR CNRS 8180, University Paris-Saclay, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France

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First published: 02 November 2021
Citations: 8

In memory of Professor François Couty

Abstract

We report the synthesis and optoelectronic properties of TIPS-peri-pentacenopentacene (TIPS-PPP), a vertical extension of TIPS-pentacene (TIPS-PEN) and a low-band-gap material with remarkable stability. We found the synthetic conditions to avoid the competition between 1,2- and 1,4-addition of lithium acetylide on the large aromatic dione. The high stability of TIPS-PPP is due to the peri-fusion which increases the aromaticity by generating two localized aromatic sextets that are flanked with 2 diene fragments, similar to two fused-anthracenes. Like TIPS-PEN, TIPS-PPP shows the archetypal 2D brickwall motif in crystals with a larger transfer integral and smaller reorganization energy. The high mobility of up to 1 cm2 V−1 s−1 was obtained in an organic field-effect transistor fabricated by a wet process. Also, TIPS-PPP was used as a near-infrared (NIR) emitter for NIR organic-light-emitting-diode devices resulting in a high external quantum efficiency at 800 nm.

Conflict of interest

The authors declare no conflict of interest.

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