Azaarene Dimers

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Binaphthyl-3,3′,4,4′-tetraone was prepared and coupled to different bis(TIPS-ethynyl)-substituted (TIPS=triisopropyl silane) aromatic diamines, resulting in the formation of dimeric benzo-fused azaacenes, centrally connected by a single bond. The two halves of the molecules are highly twisted with respect to each other and showed limited electronic interaction in the ground state because their absorption spectra remained very similar to those of the constituting monomers. The dimers displayed greatly reduced fluorescence when compared to the monomers, suggesting that there is a significant interaction of the two azarene units in the excited state. Preliminary investigations showed that the dimers are attractive for application as acceptors in organic photovoltaic because they significantly outperform their monomeric counterparts.

Details

Original languageEnglish
Pages (from-to)7285-7291
Number of pages7
JournalChemistry - A European Journal
Volume25
Issue number30
Publication statusPublished - 28 May 2019
Peer-reviewedYes

External IDs

PubMed 30983062

Keywords

Sustainable Development Goals

ASJC Scopus subject areas

Keywords

  • acceptor materials, aromatic dimers, azaarenes, organic electronics, organic photovoltaics