An Europium (III) Luminophore with Pressure-Sensing Units: Effective Back Energy Transfer in Coordination Polymers with Hexadentate Porous Stable Networks

Hasegawa, Yasuchika; Sawanobori, Takuya; Kitagawa, Yuichi; Shoji, Sunao; Fushimi, Koji; Nakasaka, Yuta; Masuda, Takao; Hisaki, Ichiro

An Europium (III) Luminophore with Pressure-Sensing Units: Effective Back Energy Transfer in Coordination Polymers with Hexadentate Porous Stable Networks

Hasegawa, Yasuchika; Sawanobori, Takuya; Kitagawa, Yuichi et al.

ChemPlusChem, 2020, 85(9), 1989-1993

Permalink : https://hdl.handle.net/2115/82575

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アクセス権	open access
URI	https://hdl.handle.net/2115/82575
タイトル	An Europium (III) Luminophore with Pressure-Sensing Units: Effective Back Energy Transfer in Coordination Polymers with Hexadentate Porous Stable Networks
著者	Hasegawa, Yasuchika ; Sawanobori, Takuya ; Kitagawa, Yuichi ; Shoji, Sunao ; Fushimi, Koji ; Nakasaka, Yuta ; Masuda, Takao ; Hisaki, Ichiro
e-Rad_Researcher 80324797 著者名 Hasegawa, Yasuchika
著者名 Sawanobori, Takuya
e-Rad_Researcher 90740093 著者名 Kitagawa, Yuichi
著者名 Shoji, Sunao
e-Rad_Researcher 20271645 著者名 Fushimi, Koji
e-Rad_Researcher 30629548 著者名 Nakasaka, Yuta
e-Rad_Researcher 20165715 著者名 Masuda, Takao
著者名 Hisaki, Ichiro
言語	英語
キーワード	coordination polymer
	energy transfer
	europium
	luminescence
	oxygen sensor
発行日	2020-09
出版者	Wiley-Blackwell
収録物名	ChemPlusChem
巻(号)	85(9)
ページ	1989-1993
抄録	A luminescent Eu(III)coordination polymer with O-2-sensing units under air, Eu-III-hcpt (hcpt: 2,3,6,7,10,11-hexakis(4-carboxy-phenyl)triphenylene), is reported. The hexadentate carboxylic acids in hcpt ligands play an important role in the formation of tight-packed three-dimensional networks in Eu-III-hcpt, giving hyper thermo-stable structures (decomposition temperature=420 degrees C). The three-dimensional porous network promotes bright luminescence (4f-4f emission quantum yield=70 %). The emission lifetime of Eu-III-hcpt under vacuum (0.86 ms) was twice as large as that under O-2(0.48 ms, 1 atom:101.3 kPa). The Arrhenius analysis of the emission decay profile indicates that the back energy transfer (BEnT) from the emitting level of the europium(III) ion to the excited T(1)state of the hcpt ligand should be activated at room temperature. The gradual decrease of emission lifetime is caused by the BEnT process in Eu-III-hcpt. Finally, an advanced pressure-sensitive luminophore is demonstrated.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is the accepted version of the following article: ChemPlusChem, which has been published in final form at https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.202000513.
PISSN	2192-6506
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1002/cplu.202000513