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Exciton coupling in diketopyrrolopyrrole-helicene derivatives leads to red and near-infrared circularly polarized luminescence.

ABSTRACT: Molecular and macromolecular chiral ?-conjugated diketopyrrolopyrrole (DPP)-helicene derivatives were prepared and their chiroptical properties examined experimentally and theoretically. Exciton coupling leads to red and near-infrared circularly polarized absorption and luminescence arising from the achiral DPP units in the helical environment, highlighting an interesting synergy between the chiral helicene and the organic dye.

SUBMITTER: Dhbaibi K

PROVIDER: S-EPMC5872492 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Exciton coupling in diketopyrrolopyrrole-helicene derivatives leads to red and near-infrared circularly polarized luminescence.

Dhbaibi Kais K Favereau Ludovic L Srebro-Hooper Monika M Jean Marion M Vanthuyne Nicolas N Zinna Francesco F Jamoussi Bassem B Di Bari Lorenzo L Autschbach Jochen J Crassous Jeanne J

Chemical science 20171115 3

Molecular and macromolecular chiral π-conjugated diketopyrrolopyrrole (DPP)-helicene derivatives were prepared and their chiroptical properties examined experimentally and theoretically. Exciton coupling leads to red and near-infrared circularly polarized absorption and luminescence arising from the achiral DPP units in the helical environment, highlighting an interesting synergy between the chiral helicene and the organic dye. ...[more]

PMID: 29629143

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