Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 24, Pages 8068-8072Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201902529
Keywords
circularly polarized luminescence; helicenes; nanographenes; nanostructures; nonlinear optics
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Funding
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program [ERC-2015-STG-677023]
- Ministerio de Economia y Competitividad (MINECO, Spain) [CTQ2015-70283-P, UNGR15-CE-3478, BES-2016-076371, RyC-2013-12943]
- Ministerio de Ciencia, Innovacion y Universidades (Spain) [PGC2018-101181-B-I00]
- Fundacao para a Ciencia e a tecnologia [PTDC/NAN-MAT729317/2017, PTDC/QUI-QFI/29319/2017]
- Fundação para a Ciência e a Tecnologia [PTDC/QUI-QFI/29319/2017] Funding Source: FCT
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A unique rippled nanographene consisting of 52 fused rings is presented in which six out-of-plane motifs are fully fused into a triangular aromatic surface with a size of approximately 2.5 nm. Three units of an unprecedented fully lateral pi-extended octabenzo[5]helicene together with three units of saddle-shaped heptagonal rings are combined in a single structure, leading to a well-soluble warped nanographene. The two diastereomeric pairs of possible enantiomers were isolated, and their linear, non-linear, and chiroptical properties were evaluated, revealing outstanding quantum yield and brightness values at low energy, together with good chiroptical responses in both absorption and emission.
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