Spiroconjugated Tetraaminospirenes as Donors in Color-Tunable Charge-Transfer Emitters with Donor-Acceptor Structure

David C. Grenz, Daniel Rose, Jan S. Wössner, Jennifer Wilbuer, Florin Adler, Mathias Hermann, Chin Yiu Chan, Chihaya Adachi, Birgit Esser

Research output: Contribution to journalArticlepeer-review

Abstract

Charge-transfer emitters are attractive due to their color tunability and potentially high photoluminescence quantum yields (PLQYs). We herein present tetraaminospirenes as donor moieties, which, in combination with a variety of acceptors, furnished 12 charge-transfer emitters with a range of emission colors and PLQYs of up to 99 %. The spatial separation of their frontier molecular orbitals was obtained through careful structural design, and two DA structures were confirmed by X-ray crystallography. A range of photophysical measurements supported by DFT calculations shed light on the optoelectronic properties of this new family of spiro-NN-donor-acceptor dyes.

Original languageEnglish
Article numbere202104150
JournalChemistry - A European Journal
Volume28
Issue number6
DOIs
Publication statusPublished - Jan 27 2022

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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