A europium complex with enhanced long-wavelength sensitized luminescent properties

doi:10.1039/b920448b

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	A europium complex with enhanced long-wavelength sensitized luminescent properties
	Xue, Fumin 1; Ma, Yan 1; Fu, Limin 2; Hao, Rui 1; Shao, Guangsheng 1; Tang, Minxian 1; Zhang, Jianping 2; Wang, Yuan 1
刊名	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
	2010
卷号	12 期号:13 页码:3195-3202
ISSN号	1463-9076
DOI	10.1039/b920448b
英文摘要	We report a new complex Eu(tta)(3)center dot bpt (tta = thenoyltrifluoroacetonate; bpt = 2-(N, N-di-ethylanilin-4-yl)-4,6-bis(pyrazol-1-yl)-1,3,5-triazine) with excellent long-wavelength sensitized luminescent properties, in which four hydrogen atoms replace the methyl groups at the 3,3'- and 5,5'-positions of the pyrazolyl rings in a previously reported complex Eu(tta)(3)center dot dpbt. Upon visible-light excitation (lambda(ex) = 410 nm) at 295 K, the quantum yield (Phi(Ln)(L)) of Eu(3+) luminescence of Eu(tta)(3)center dot bpt is higher by 23% than that of Eu(tta)(3)center dot dpbt. Different from the case of Eu(tta)(3)center dot dpbt, Phi(Ln)(L) of Eu(tta)(3)center dot bpt increases linearly with the decrease in temperature. Because of the different coordination environments around Eu(3+) ion, the. ne structure of the hypersensitive (5)D(0)->(7)F(2) emission band of Eu(tta)(3)center dot bpt is quite different from that of Eu(tta)(3)center dot dpbt, with the strongest emission line locating at 620 nm rather than 613 nm where the strongest emission line of Eu(tta)(3)center dot dpbt appears. The excitation window of Eu(tta)(3)center dot bpt is much broader than that of Eu(tta)(3)center dot dpbt with a red edge extending up to 450 nm in a dilute toluene soluton (1.0 x 10(-5) M) and 500 nm in a toluene solution (1.0 x 10(-2) M). Eu(tta)(3)center dot bpt also exhibits excellent two-photon-excitation luminescent properties.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000275706100017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/69373]
专题	中国科学院化学研究所
通讯作者	Wang, Yuan
作者单位	1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
推荐引用方式 GB/T 7714	Xue, Fumin,Ma, Yan,Fu, Limin,et al. A europium complex with enhanced long-wavelength sensitized luminescent properties[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2010,12(13):3195-3202.
APA	Xue, Fumin.,Ma, Yan.,Fu, Limin.,Hao, Rui.,Shao, Guangsheng.,...&Wang, Yuan.(2010).A europium complex with enhanced long-wavelength sensitized luminescent properties.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,12(13),3195-3202.
MLA	Xue, Fumin,et al."A europium complex with enhanced long-wavelength sensitized luminescent properties".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 12.13(2010):3195-3202.