N-Doped Octagon-Containing HBC as Redox and pH Chiroptical Switch in the NIR

The optical and chiroptical properties of an aza-HBC-oct-[5]helicene have been studied and also modulated by means of protonation or oxidation. In both cases, the generated species shows a new absorption band in the NIR region that is not present in the neutral species. This result enables this N-do...

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Detalles Bibliográficos
Autores: Medel, Miguel A.|||0000-0003-2594-1723, Hortigüela, Lidia, Lloveras, Vega, Catalán-Toledo, José|||0000-0001-6165-1286, Miguel, Delia, Mota, Antonio J., Crivillers, Núria|||0000-0001-6538-2482, González Campaña, Araceli|||0000-0001-5483-5642, Morcillo, Sara P.
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:302383
Acceso en línea:https://ddd.uab.cat/record/302383
https://dx.doi.org/urn:doi:10.1002/ceur.202300021
Access Level:acceso abierto
Palabra clave:Chiroptical switch
Circular dichroism
Helicenes
Hydrocarbons
N-doped
Nanographenes
Descripción
Sumario:The optical and chiroptical properties of an aza-HBC-oct-[5]helicene have been studied and also modulated by means of protonation or oxidation. In both cases, the generated species shows a new absorption band in the NIR region that is not present in the neutral species. This result enables this N-doped nanographene to act both as optical and, remarkably, as chiroptical switch since both the CD and CPL can be modulated by external stimuli such as redox or pH changes.

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