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

4 Citations (Scopus)

38 Downloads (CityUHK Scholars)

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.

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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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T1 - Spiroconjugated Tetraaminospirenes as Donors in Color-Tunable Charge-Transfer Emitters with Donor-Acceptor Structure

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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U2 - 10.1002/chem.202104150

DO - 10.1002/chem.202104150

M3 - RGC 21 - Publication in refereed journal

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AN - SCOPUS:85121342718

SN - 0947-6539

VL - 28

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

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ER -

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

Abstract

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