Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-021-27809-0
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Funding
- ERDF/ESF UOCHB MSCA Mobility [CZ.02.2.69/0.0/ 0.0/17 050/0008490]
- EraNET Cofund Initiatives QuantERA under the European Union's Horizon 2020 research and innovation programme
- CNRS through the MITI interdisciplinary programs
- JSPS-WPI
- JST-ERATO [JPMJER1903]
- Foundation EXPERIENTIA
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In recent years, the preparation of acenes with more rings has evolved, but large-scale synthesis of higher homologues remains a challenge. This study presents the preparation and characterization of nonacene and demonstrates its stability.
During the last years we have witnessed progressive evolution of preparation of acenes with length up to dodecacene by on-surface synthesis in ultra-high vacuum or generation of acenes up to decacene in solid matrices at low temperatures. While these protocols with very specific conditions produce the acenes in amount of few molecules, the strategies leading to the acenes in large quantities dawdle behind. Only recently and after 70 years of synthetic attempts, heptacene has been prepared in bulk phase. However, the preparative scale synthesis of higher homologues still remains a formidable challenge. Here we report the preparation and characterisation of nonacene and show its excellent thermal and in-time stability. Acenes, or linearly fused benzene rings, have both fundamental scientific interest and potential for electronic and material utility, but synthesis of acenes with more than six rings are difficult due to dimerization and degradation. Here the authors prepare nonacene and demonstrate that it is stable in inert conditions.
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