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

doi:10.1002/chem.202104150

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^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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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. © 2021 The Authors. Chemistry- A European Journal published by Wiley-VCH GmbH

Original language	English
Article number	e202104150
Journal	Chemistry - A European Journal
Volume	28
Issue number	6
Online published	3 Dec 2021
DOIs	https://doi.org/10.1002/chem.202104150
Publication status	Published - 27 Jan 2022
Externally published	Yes

Funding

This research was funded by the Deutsche Forschungsgemein‐schaft (DFG, German Research Foundation‐project numbers 230408635, INST 40/467‐1 FUGG), the Chemical Industry Trust (Liebig Fellowship, Li 189/11), the German Academic Exchange Service (DAAD), the Japan Society for the Promotion of Science (JSPS) Core‐to‐Core Program (grant number: JPJSCCA20180005), the University of Bonn (Maria von Linden‐program), and the state of Baden‐Württemberg through bwHPC. Open Access funding enabled and organized by Projekt DEAL. This research was funded by the Deutsche Forschungsgemein-schaft (DFG, German Research Foundation-project numbers 230408635, INST 40/467-1 FUGG), the Chemical Industry Trust (Liebig Fellowship, Li 189/11), the German Academic Exchange Service (DAAD), the Japan Society for the Promotion of Science (JSPS) Core-to-Core Program (grant number: JPJSCCA20180005), the University of Bonn (Maria von Linden-program), and the state of Baden-W?rttemberg through bwHPC. Open Access funding enabled and organized by Projekt DEAL.

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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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. {\textcopyright} 2021 The Authors. Chemistry- A European Journal published by Wiley-VCH GmbH",

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AU - Grenz, David C.

AU - Rose, Daniel

AU - Wössner, Jan S.

AU - Wilbuer, Jennifer

AU - Adler, Florin

AU - Hermann, Mathias

AU - Chan, Chin-Yiu

AU - Adachi, Chihaya

AU - Esser, Birgit

PY - 2022/1/27

Y1 - 2022/1/27

N2 - 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. © 2021 The Authors. Chemistry- A European Journal published by Wiley-VCH GmbH

AB - 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. © 2021 The Authors. Chemistry- A European Journal published by Wiley-VCH GmbH

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

Abstract

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