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Structure–Property Relationships in Donor–Acceptor Systems With Thiophene/Furan π‐Bridges Built by Iterative Oxidation–Decarboxylative Coupling

Year: 2026

Type: article

Abstract: This study investigates six donor-π-acceptor (D-π-A) compounds incorporating various π-conjugated bridges based on bifuran, bithiophene, terfuran, terthiophene, and mixed furan-thiophene sequences. These bridges were synthesized via a key decarboxylative coupling approach utilizing thiophene- or furan-based carboxylic acid derivatives and their corresponding bromo- or carbaldehyde analogs. This synthetic route enabled efficient coupling and reoxidation, facilitating the introduction of up to three consecutive heterocyclic units without a significant loss in yield. A comparative analysis of their optoelectronic properties demonstrates that both the nature and the sequence of the heterocyclic units within the π-conjugated bridge play a decisive role in governing the electronic structure and overall performance of the resulting materials.

Source: Chemistry - A European Journal

DOI: 10.1002/chem.71724

Authors: Thanh Thao Huynh, Magali Allain, Arnaud Nourry, Stéphane Guillarme, Frédéric Gohier

Institutions: Centre National de la Recherche Scientifique, Le Mans Université, Institut des Molécules et Matériaux du Mans, Institut des Sciences et Technologies Moléculaires d'Angers, Université d'Angers

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Agence de l'Environnement et de la Maîtrise de l'Energie

OpenAlex ID: W7214534017

FWCI:

Cites: 37

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