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TitleTheoretical Calculations for Highly Selective Direct Heteroarylation Polymerization: New Nitrile-Substituted Dithienyl-Diketopyrrolopyrrole-Based Polymers.
Publication TypeJournal Article
Year of Publication2018
AuthorsBura, Thomas, Serge Beaupré, Marc-André Légaré, Olzhas A. Ibraikulov, Nicolas Leclerc, and Mario Leclerc
JournalMolecules
Volume23
Issue9
Date Published2018 Sep 12
ISSN1420-3049
Abstract

Direct Heteroarylation Polymerization (DHAP) is becoming a valuable alternative to classical polymerization methods being used to synthesize π-conjugated polymers for organic electronics applications. In previous work, we showed that theoretical calculations on activation energy (E) of the C⁻H bonds were helpful to rationalize and predict the selectivity of the DHAP. For readers' convenience, we have gathered in this work all our previous theoretical calculations on E and performed new ones. Those theoretical calculations cover now most of the widely utilized electron-rich and electron-poor moieties studied in organic electronics like dithienyl-diketopyrrolopyrrole (DT-DPP) derivatives. Theoretical calculations reported herein show strong modulation of the E of C⁻H bond on DT-DPP when a bromine atom or strong electron withdrawing groups (such as fluorine or nitrile) are added to the thienyl moiety. Based on those theoretical calculations, new cyanated dithienyl-diketopyrrolopyrrole (CNDT-DPP) monomers and copolymers were prepared by DHAP and their electro-optical properties were compared with their non-fluorinated and fluorinated analogues.

DOI10.3390/molecules23092324
Alternate JournalMolecules
PubMed ID30213056
Grant List04271-2017 / / Natural Sciences and Engineering Research Council of Canada /