Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium

Kohzuma, Takuto; Sugita, Kei; Tani, Yosuke; Metzelaars, Marvin; Kubo, Takashi

doi:https://doi.org/10.1021/acs.orglett.5c01541

Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium

Kohzuma, Takuto; Sugita, Kei; Tani, Yosuke et al.

Organic Letters, 2025, 27(23), 6019-6024

アクセス数:16件（2025-09-01 21:49 集計）

固定URL: https://hdl.handle.net/11094/102455

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タイトル	Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium
著者	著者名 Kohzuma, Takuto
	著者名 Sugita, Kei
	NRID 1000000769383 1000000769383 ORCID 0000-0003-1326-5457 0000-0003-1326-5457 researchmap permalink tani-y tani-y Scopus Author ID 55452146800 55452146800 著者名 Tani, Yosuke
	著者名 Metzelaars, Marvin
	NRID 1000060324745 1000060324745 ORCID 0000-0001-6809-7396 0000-0001-6809-7396 researchmap permalink read0076571 read0076571 Scopus Author ID 55576439300 55576439300 著者名 Kubo, Takashi
内容	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Organic Letters, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.orglett.5c01541
内容	Kohzuma T., Sugita K., Tani Y., et al. Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium. Organic Letters 27, 6019 (2025); https://doi.org/10.1021/acs.orglett.5c01541.
抄録	Open-shell organic radicals exhibit exceptional photophysical properties due to their unique electronic structures. Herein, we report the 2,5,8-tribromophenalenyl radical (Br-PLY) as a stable, emissive phenalenyl derivative. Br-PLY shows a monomer−π-dimer equilibrium in solution and emits light from its monomeric radical state. Its high air stability (t1/2 ≈ 40 h) and long-lived emission (τ = 252 ns) demonstrate the potential of phenalenyl radicals as promising luminescent materials beyond trityl-based systems.
出版者	American Chemical Society
収録物名	Organic Letters
巻(号)	27(23)
ページ	6019-6024
刊行年月	2025-06-13
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102455
PISSN	15237060
eISSN	15237052
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1021/acs.orglett.5c01541
アクセス権	embargoed access
権利情報	The full-text file will be made open to the public on 13 June 2026 in accordance with the publisher's policy.
出版タイプ	Accepted Manuscript
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Organic Letters. 2025, 27(23), p. 6019-6024
DC.title	Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium
DC.creator	Kohzuma, Takuto
	Sugita, Kei
	Tani, Yosuke
	Metzelaars, Marvin
	Kubo, Takashi
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-06-13
DC.identifier	https://doi.org/10.1021/acs.orglett.5c01541
DC.description	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Organic Letters, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.orglett.5c01541
DC.description	Kohzuma T., Sugita K., Tani Y., et al. Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium. Organic Letters 27, 6019 (2025); https://doi.org/10.1021/acs.orglett.5c01541.
DCTERMS.abstract	Open-shell organic radicals exhibit exceptional photophysical properties due to their unique electronic structures. Herein, we report the 2,5,8-tribromophenalenyl radical (Br-PLY) as a stable, emissive phenalenyl derivative. Br-PLY shows a monomer−π-dimer equilibrium in solution and emits light from its monomeric radical state. Its high air stability (t1/2 ≈ 40 h) and long-lived emission (τ = 252 ns) demonstrate the potential of phenalenyl radicals as promising luminescent materials beyond trityl-based systems.
DC.rights	The full-text file will be made open to the public on 13 June 2026 in accordance with the publisher's policy.
DC.format	102455
citation_title	Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium
citation_author	Kohzuma, Takuto
	Sugita, Kei
	Tani, Yosuke
	Metzelaars, Marvin
	Kubo, Takashi
citation_publisher	American Chemical Society
citation_language	英語
citation_date	2025-06-13
citation_journal_title	Organic Letters
citation_volume	27
citation_issue	23
citation_firstpage	6019
citation_lastpage	6024
citation_doi	https://doi.org/10.1021/acs.orglett.5c01541
citation_public_url	https://hdl.handle.net/11094/102455

Stable Tribrominated Phenalenyl Radical Exhibiting Long-Lived Luminescence from a Monomer−π-Dimer Equilibrium

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