Zwitterionic Open-Shell Singlet Diradical with Solvent-Dependent Singlet–Triplet Energy Gap

Shimizu, Akihiro; Hayashida, Masaaki; Ochi, Yuta et al.

Asian Journal of Organic Chemistry, 2023, 12(8), e202300224

Number of Access:818（2025-08-29 08:17 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/92336

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Title
Zwitterionic Open-Shell Singlet Diradical with Solvent-Dependent Singlet–Triplet Energy Gap
Creator
NRID
1000030584263 1000030584263
ORCID
0000-0001-9392-2087 0000-0001-9392-2087
researchmap permalink
7000009063 7000009063
Scopus Author ID
55513295900 55513295900
CreatorName
Shimizu, Akihiro
CreatorName
Hayashida, Masaaki
CreatorName
Ochi, Yuta
NRID
1000040260799 1000040260799
CreatorName
Shiomi, Daisuke
NRID
1000090264796 1000090264796
CreatorName
Sato, Kazunobu
NRID
1000010117955 1000010117955
CreatorName
Takui, Takeji
NRID
1000050372561 1000050372561
researchmap permalink
RMshintani RMshintani
Scopus Author ID
6701562981 6701562981
CreatorName
Shintani, Ryo
Subject
NIR absorption
radicals
singlet diradicals
triplet diradicals
zwitterions
Description
This is the peer reviewed version of the following article: Shimizu A., Hayashida M., Ochi Y., et al. Zwitterionic Open-Shell Singlet Diradical with Solvent-Dependent Singlet–Triplet Energy Gap. Asian Journal of Organic Chemistry, which has been published in final form at https://doi.org/10.1002/ajoc.202300224. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
Abstract
A zwitterionic open-shell singlet diradical composed of electron-donating anion, anthroxide, and electron-accepting cation, phenazinium, was designed and synthesized. The diradical has a small HOMO–LUMO energy gap and shows near-infrared absorption. Temperature-dependent ESR measurements confirmed its small energy gap between ground singlet and thermally-excited triplet states (ΔEST). The ΔEST of the diradical was changed by solvents (toluene, 2-MeTHF, and EtOH).
Publisher
John Wiley and Sons Inc
Source Title
Asian Journal of Organic Chemistry
Volume (Issue)
12(8)
Page
e202300224
Date of Issued
2023-05-23
Language
English
Handle URL
https://hdl.handle.net/11094/92336
PISSN
21935807
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1002/ajoc.202300224
Access Rights
open access
CopyRight
© 2023 Wiley-VCH GmbH
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article