An Energy‐Tunable Dual Emission Mechanism of the Hybridized Local and Charge Transfer (HLCT) and the Excited State Conjugation Enhancement (ESCE)

Suga, Kensuke; Ochiai, Keisuke; Yoneda, Yusuke et al.

Chemistry – A European Journal, 2024, e202404376

Number of Access:100（2025-09-04 04:07 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100421

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Title
An Energy‐Tunable Dual Emission Mechanism of the Hybridized Local and Charge Transfer (HLCT) and the Excited State Conjugation Enhancement (ESCE)
Creator
CreatorName
Suga, Kensuke
CreatorName
Ochiai, Keisuke
NRID
1000060903721 1000060903721
CreatorName
Yoneda, Yusuke
NRID
1000040709367 1000040709367
CreatorName
Kuramochi, Hikaru
NRID
1000030580071 1000030580071
ORCID
0000-0003-1863-9956 0000-0003-1863-9956
researchmap permalink
read0156671 read0156671
CreatorName
Saito, Shohei
Subject
charge transfer
Conformational change
Dual emission
Excited state
fluorescence
Description
This is the accepted version of the following article: Suga Kensuke, Ochiai Keisuke, Yoneda Yusuke, et al. An Energy‐Tunable Dual Emission Mechanism of the Hybridized Local and Charge Transfer (HLCT) and the Excited State Conjugation Enhancement (ESCE). Chemistry – A European Journal, e202404376 (2024), which has been published in final form at https://doi.org/10.1002/chem.202404376. This article may be used for non-commercialpurposes in accordance with the Wiley Self-ArchivingPolicy [https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html]
Abstract
Molecular design of dual-fluorescent probes requires precise adjustment of the energy levels of two excited states and the energy barrier between them. While the hybridized local and charge-transfer (HLCT) state has been recently focused as an important excited state for high emission efficiency with a tunable energy level, a dual emission involving the HLCT state has been only achieved with the excited-state intramolecular proton transfer (ESIPT) system. Here, a series of dual-fluorescent molecules involving an HLCT excited state with the excited-state conjugation enhancement (ESCE) motif is presented as the first case. The energy level of the HLCT state has been adjusted by changing substituents and solvents, separately from the ESCE energy level. The HLCT-ESCE molecular design with tunable fluorescence properties proposes a new strategy for the development of advanced fluorescent probes.
Publisher
Wiley
Source Title
Chemistry – A European Journal
Page
e202404376
Date of Issued
2024-12-10
Language
English
Handle URL
https://hdl.handle.net/11094/100421
PISSN
09476539
eISSN
15213765
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1002/chem.202404376
Access Rights
embargoed access
CopyRight
© 2024 Wiley-VCH GmbH
The full-text file will be made open to the public on 10 December 2025 in accordance with the publisher's policy.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article