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Chem Sci. 2017 Nov 15;9(3):735-742. doi: 10.1039/c7sc04312k. eCollection 2018 Jan 21.

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

Chemical science

Kais Dhbaibi, Ludovic Favereau, Monika Srebro-Hooper, Marion Jean, Nicolas Vanthuyne, Francesco Zinna, Bassem Jamoussi, Lorenzo Di Bari, Jochen Autschbach, Jeanne Crassous

Affiliations

  1. Institut des Sciences Chimiques de Rennes UMR 6226 , Campus Beaulieu , 35042 Rennes Cedex , France . Email: [email protected] ; Email: [email protected].
  2. University of Gabés , Faculty of Science of Gabès , Zrig , 6072 Gabès , Tunisia.
  3. Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland.
  4. Aix Marseille University , CNRS , Centrale Marseille , iSm2 , Marseille , France.
  5. Dipartimento di Chimica e Chimica Industriale (University of Pisa) , via Moruzzi 13 , 56124 , Pisa , Italy . Email: [email protected].
  6. Laboratoire de Chimie Organique et Analytique , Institut Supérieur de l'Education et de la Formation Continue , 2000 Bardo , Tunisia.
  7. Department of Chemistry , University at Buffalo , State University of New York , Buffalo , NY 14260 , USA . Email: [email protected].

PMID: 29629143 PMCID: PMC5872492 DOI: 10.1039/c7sc04312k

Abstract

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.

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