Seven-Coordinate Luminophores: Brilliant Luminescence of Lanthanide Complexes with C-3v Geometrical Structures

Yanagisawa, Kei; Nakanishi, Takayuki; Kitagawa, Yuichi; Seki, Tomohiro; Akama, Tomoko; Kobayashi, Masato; Taketsugu, Tetsuya; Ito, Hajime; Fushimi, Koji; Hasegawa, Yasuchika

Seven-Coordinate Luminophores: Brilliant Luminescence of Lanthanide Complexes with C-3v Geometrical Structures

Yanagisawa, Kei; Nakanishi, Takayuki; Kitagawa, Yuichi et al.

European journal of inorganic chemistry, 2015, 28, 4769-4774

Permalink : https://hdl.handle.net/2115/62879

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アクセス権	open access
URI	https://hdl.handle.net/2115/62879
タイトル	Seven-Coordinate Luminophores: Brilliant Luminescence of Lanthanide Complexes with C-3v Geometrical Structures
著者	Yanagisawa, Kei ; Nakanishi, Takayuki ; Kitagawa, Yuichi ; Seki, Tomohiro ; Akama, Tomoko ; Kobayashi, Masato ; Taketsugu, Tetsuya ; Ito, Hajime ; Fushimi, Koji ; Hasegawa, Yasuchika
著者名 Yanagisawa, Kei
e-Rad_Researcher 30609855 著者名 Nakanishi, Takayuki
著者名 Kitagawa, Yuichi
e-Rad_Researcher 50638187 著者名 Seki, Tomohiro
著者名 Akama, Tomoko
著者名 Kobayashi, Masato
e-Rad_Researcher 90280932 著者名 Taketsugu, Tetsuya
e-Rad_Researcher 90282300 著者名 Ito, Hajime
e-Rad_Researcher 20271645 著者名 Fushimi, Koji
e-Rad_Researcher 80324797 著者名 Hasegawa, Yasuchika
言語	英語
キーワード	Lanthanides
	Luminescence
	O ligands
	Structure elucidation
	Density functional calculations
発行日	2015-10
出版者	Wiley-Blackwell
収録物名	European journal of inorganic chemistry
巻(号)	28
ページ	4769-4774
抄録	Enhanced luminescence properties of mononuclear lanthanide complexes with asymmetric seven-coordination structures are reported for the first time. The lanthanide complexes are composed of a lanthanide ion (Eu-III or Tb-III), three tetramethyl heptanedionato ligands, and one triphenylphosphine oxide ligand. The coordination geometries of the lanthanide complexes have been evaluated by using single-crystal X-ray analyses and shape-measurement calculations. The complexes are categorized to be seven-coordinate monocapped octahedral structures (point group C-3v). The seven-coordinate lanthanide complexes show high intrinsic emission quantum yields, extra-large radiative rate constants, and unexpected small nonradiative rate constants. The brilliant luminescence properties have been elucidated in terms of the asymmetric coordination geometry and small vibrational quanta related to thermal relaxation.
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 peer reviewed version of the following article: European Journal of Inorganic Chemistry　2015(28) 4769-4774, which has been published in final form at http://doi.org/10.1002/ejic.201500820. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
PISSN	1434-1948
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1002/ejic.201500820