Anion-Responsive Colorimetric and Fluorometric Red-Shift in Triarylborane Derivatives: Dual Role of Phenazaborine as Lewis Acid and Electron Donor

Aota, Nae; Nakagawa, Riku; de Sousa, Leonardo Evaristo et al.

Angewandte Chemie - International Edition, 2024, 63(24), e202405158

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Identifier to cite or link to this item: https://hdl.handle.net/11094/95797

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Title
Anion-Responsive Colorimetric and Fluorometric Red-Shift in Triarylborane Derivatives: Dual Role of Phenazaborine as Lewis Acid and Electron Donor
Creator
CreatorName
Aota, Nae
CreatorName
Nakagawa, Riku
CreatorName
de Sousa, Leonardo Evaristo
NRID
1000030346184 1000030346184
researchmap permalink
read0089607 read0089607
Scopus Author ID
6701482198 6701482198
ORCID
0000-0001-7051-7599 0000-0001-7051-7599
CreatorName
Tohnai, Norimitsu
NRID
1000090273599 1000090273599
researchmap permalink
read0185263 read0185263
Scopus Author ID
7003640913 7003640913
ORCID
0000-0001-9619-445X 0000-0001-9619-445X
CreatorName
Minakata, Satoshi
CreatorName
de Silva, Piotr
NRID
1000060608785 1000060608785
ORCID
0000-0001-9103-4238 0000-0001-9103-4238
researchmap permalink
read0156438 read0156438
Scopus Author ID
12753487600 12753487600
CreatorName
Takeda, Youhei
Subject
boron
charge-transfer
donor-acceptor
luminescence
sensor
Description
Aota N., Nakagawa R., de Sousa L.E., et al. Anion-Responsive Colorimetric and Fluorometric Red-Shift in Triarylborane Derivatives: Dual Role of Phenazaborine as Lewis Acid and Electron Donor. Angewandte Chemie - International Edition , (2024); https://doi.org/10.1002/anie.202405158.
Abstract
Photophysical modulation of triarylboranes (TABs) through Lewis acid-base interactions is a fundamental approach for sensing anions. Yet, design principles for anion-responsive TABs displaying significant red-shift in absorption and photoluminescence (PL) have remained elusive. Herein, a new strategy for modulating the photophysical properties of TABs in a red-shift mode has been presented, by using a nitrogen-bridged triarylborane (1,4-phenazaborine: PAzB) with a contradictory dual role as a Lewis acid and an electron donor. Following the strategy, PAzB derivatives connected with an electron-deficient azaaromatic have been developed, and these compounds display a distinct red-shift in their absorption and PL in response to an anion. Spectroscopic analyses and quantum chemical calculations have revealed the formation of a tetracoordinate borate upon the addition of fluoride, narrowing the HOMO–LUMO gap and enhancing the charge-transfer character in the excited state. This approach has also been demonstrated in modulating the photophysical properties of solid-state films.
Publisher
John Wiley and Sons Inc
Source Title
Angewandte Chemie - International Edition
Volume (Issue)
63(24)
Page
e202405158
Date of Issued
2024-05-03
Language
English
Handle URL
https://hdl.handle.net/11094/95797
PISSN
14337851
eISSN
15213773
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/anie.202405158
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article