peri -Acenoacenes

We report the challenging synthesis and electronic properties of a new class of rhombic peri -fused acene dimers, the so-called peri -acenoacenes. Compared to rectangular peri -fused peri -acenes, peri -acenoacenes show less diradical character and higher stability. Two soluble and stable aryl-subst...

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Published inChemical communications (Cambridge, England) Vol. 55; no. 39; pp. 5567 - 5570
Main Authors Gu, Yanwei, Tullimilli, Y. Gopalakrishna, Feng, Jiaqi, Phan, Hoa, Zeng, Wangdong, Wu, Jishan
Format Journal Article
LanguageEnglish
Published CAMBRIDGE Royal Soc Chemistry 09.05.2019
Royal Society of Chemistry
Subjects
Aromatic compounds
chemical compounds
chemical reactions
Chemistry
Chemistry, Multidisciplinary
Crystallography
Dimers
Optical properties
Physical Sciences
Science & Technology
X-ray diffraction
EDGE STATE
GRAPHENE NANORIBBONS
ON-SURFACE SYNTHESIS
GROUND-STATE
HEPTACENE
GAP
PHOTOGENERATION
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Summary:We report the challenging synthesis and electronic properties of a new class of rhombic peri -fused acene dimers, the so-called peri -acenoacenes. Compared to rectangular peri -fused peri -acenes, peri -acenoacenes show less diradical character and higher stability. Two soluble and stable aryl-substituted peri -acenoacenes, peri -tetracenotetracene ( TT-Ar ) and peri -pentacenopentacene ( PP-Ar ), are synthesized and their structures are confirmed by X-ray crystallographic analysis. Their optical properties and electronic properties are different from those of peri -acene derivatives. Unexpectedly, both the neutral compounds and dications are aromatic.
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ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/C9CC01986C