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This review explores the advancements in the chemistry of higher acenes and their derivatives, with a focus on their synthesis, characterization, and potential applications. Historically, higer acenes have presented challenges to study due to their inherent instability and reactivity under ambient conditions. However, innovative synthetic strategies, including on-surface syntheis and precursor approach, have significantly contributed to the ability to synthesize higher acenes even at preparative scales while evaluating their magnetic and semiconducting properties. Furthermore, ethynylene-bridged acene oligomers and polymers, known for their extended -conjugated systems, have shown promise not only as semidoncudting materials but also as topological materials. As synthetic methods continue to evolve and characterization techniques become more sophisticated, higher acenes offer exciting opportunities for progress in the field of organic chemistry and materials science, paving the way for advanced applications in organic electronics.

Rights:

• cc-by-nc-3.0
  

Keyword: higher acene, organic semiconductor, spintronics, organic molecule, on-surface synthesis

Date published: 2025-06-04

Publisher: Royal Society of Chemistry (RSC)

Journal:

• Chemical Science (ISSN: 20416520) vol. 16 issue. 25 p. 11204-11231

Funding:

• Precursory Research for Embryonic Science and Technology
• Japan Science and Technology Agency JPMJPR21AC
• Japan Society for the Promotion of Science JP24K01576
• Japan Society for the Promotion of Science JP20H05833
• Japan Society for the Promotion of Science JP25K01751

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1039/d5sc02422f

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Updated at: 2025-08-25 12:30:40 +0900

Published on MDR: 2025-08-25 12:19:24 +0900