Secondary Coordination Sphere-Directed Design of Thermo-Responsive and Bright Luminescent Manganese(II) Complexes

Yoshida, Masaki; Zhang, Fuwenhan; Segawa, Kaito et al.

Advanced Optical Materials, 2025, e02008

アクセス数:75件（2026-02-15 20:41 集計）

固定URL: https://hdl.handle.net/11094/102957

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タイトル
Secondary Coordination Sphere-Directed Design of Thermo-Responsive and Bright Luminescent Manganese(II) Complexes
著者
NRID
1000020712293 1000020712293
ORCID
0000-0002-4744-2805 0000-0002-4744-2805
researchmap permalink
myoshida1128 myoshida1128
Scopus Author ID
59678363400 59678363400
著者名
Yoshida, Masaki
著者名
Zhang, Fuwenhan
著者名
Segawa, Kaito
著者名
Komoda, Kanon
著者名
Yuasa, Kodai
著者名
Obata, Hiromu
NRID
1000010583338 1000010583338
ORCID
0000-0003-2457-0967 0000-0003-2457-0967
researchmap permalink
read0151149 read0151149
Scopus Author ID
14009212400 14009212400
著者名
Yoshinari, Nobuto
NRID
1000080214401 1000080214401
著者名
Kato, Masako
キーワード等
crystal structure
luminescence
mechanochemical synthesis
Mn complex
thermochromism
内容
Yoshida M., Zhang F., Segawa K., et al. Secondary Coordination Sphere-Directed Design of Thermo-Responsive and Bright Luminescent Manganese(II) Complexes. Advanced Optical Materials, e02008 (2025); https://doi.org/10.1002/adom.202502008.
抄録
Luminescent Mnᴵᴵ complexes have attracted considerable attention as low-cost and earth-abundant alternatives to precious metal-based emitters. However, their development is limited by certain challenges, including severe thermal quenching, moisture sensitivity, and a lack of efficient strategies for generating stimuli-responsive luminescence. In this study, these issues are addressed by decorating the secondary coordination sphere of Mnᴵᴵ complexes, thereby enhancing their emission efficiency and stimuli-responsive behavior. These Mnᴵᴵ complexes can be easily synthesized by manual mechanochemical reactions. Among them, the bulkiness-introduced complexes [MnBr₂{OP(o-Tol)₃}₂] (o-Tol = o-tolyl) and [MnBr₂{OP(o-An)₃}₂] (o-An = o-anisyl) exhibit high emission quantum yields of 0.86 and 0.78, respectively. Furthermore, [MnBr₂{OP(o-An)₃}₂] exhibits thermochromic luminescence owing to excited-state interactions between the Mnᴵᴵ center and the O atom of the methoxy group in the secondary coordination sphere. The results of this study confirm the potential of secondary coordination-sphere engineering as an effective strategy for optimizing Mnᴵᴵ luminescence, thereby offering new design principles for stimuli-responsive photofunctional materials.
出版者
John Wiley and Sons Inc
収録物名
Advanced Optical Materials
ページ
e02008
刊行年月
2025-09-02
言語
英語
ハンドルURL
https://hdl.handle.net/11094/102957
eISSN
21951071
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1002/adom.202502008
アクセス権
open access
権利情報
This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article