Merging polyacenes and cationic helicenes: from weak to intense chiroptical properties in the far red region

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Title		Merging polyacenes and cationic helicenes: from weak to intense chiroptical properties in the far red region
Authors		Duwald, Romain Bosson, Johann Pascal, Simon Grass, Stéphane Zinna, Francesco Besnard, Céline Di Bari, Lorenzo Jacquemin, Denis Lacour, Jérôme show all authors [1 - 9]
Published in		Chemical Science. 2020, vol. 11, no. 4, p. 1165-1169
Abstract		A series of helical tetracenes and pentacenes was synthesized from cationic [6] and [4]helicene precursors. These colorful acenes fluoresce in the far red region. While [4]helicene-based pentacenes exhibit chiroptical properties mainly in the UV region, [6]helicene-derived tetracenes show enhanced ECD in the visible range, in addition to clear CPL responses. This difference is rationalized using first principles.
Identifiers		DOI: 10.1039/C9SC05407C
Full text		Article (Published version) (964 Kb) - Free access Other version: http://xlink.rsc.org/?DOI=C9SC05407C
Structures		Faculté des sciences / Section de chimie et biochimie / Département de chimie organique
Research group		Groupe Lacour
Citation (ISO format)		DUWALD, Romain et al. Merging polyacenes and cationic helicenes: from weak to intense chiroptical properties in the far red region. In: Chemical Science, 2020, vol. 11, n° 4, p. 1165-1169. doi: 10.1039/C9SC05407C https://archive-ouverte.unige.ch/unige:129838