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タイトル
和文: 
英文:Energy-transfer mechanism in photoluminescent terbium(III) complexes causing their temperature-dependence 
著者
和文: Katagiri Shinya, 塚原 保徳, Hasegawa Yasuchika, 和田 雄二.  
英文: Katagiri Shinya, Tsukahara Yasunori, Hasegawa Yasuchika, Wada Yuji.  
言語 English 
掲載誌/書名
和文: 
英文:Bulletin of the Chemical Society of Japan 
巻, 号, ページ Vol. 80    No. 8    pp. 1492-1503
出版年月 2007年8月 
出版者
和文: 
英文:Chemical Society of Japan 
会議名称
和文: 
英文: 
開催地
和文: 
英文: 
アブストラクト Photoluminescence of Tb(III) complexes was studied as a function of temps. at 80-280 K for [Tb(bfa)3(H2O)2] (bfa: 4,4,4-trifluoro-1-phenyl-1,3-butanedionato), [Tb(hfa)3(H2O)3] (hfa: hexafluoroacetylacetonato), [Tb(tfa)3(H2O)2] (tfa: trifluoroacetylacetonato), [Tb(acac)3(H2O)3] (acac: acetylacetonato), and [Tb(hfa)3(tppo)2] (tppo: OPPh3). These complexes were classified into the 2 groups with different temp.-dependences. The 1st group consisting of [Tb(bfa)3(H2O)2], [Tb(tfa)3(H2O)2], and [Tb(acac)3(H2O)3] showed a dependence detd. by the energy gap between the excited triplet state of the ligand and the emitting level of Tb(III) ion. But for [Tb(hfa)3(H2O)3] and [Tb(hfa)3(tppo)2] contg. hfa as a ligand, not only the energy gap but also the energy barriers of the Forward energy transfer from the ligand to Tb(III) ion and Back energy transfer from Tb(III) ion to the ligand were taken into account for understanding their dependences. These results are discussed based on the reorientation of the complexes accompanied by the forward and back energy transfer processes using DFT calcns.

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