首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Fabrication of europium complexes with 4 '-(4-methylphenyl)-2,2 ': 6 ',2 ''-terpyridine and 4,4 '-dinonyl-2,2 '-dipyridyl at the air-water interface and their emission properties in Langmuir-Blodgett films
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Fabrication of europium complexes with 4 '-(4-methylphenyl)-2,2 ': 6 ',2 ''-terpyridine and 4,4 '-dinonyl-2,2 '-dipyridyl at the air-water interface and their emission properties in Langmuir-Blodgett films

机译:4络合物在空气-水界面处与4'-(4-甲基苯基)-2,2':6',2''-吡啶和4,4'-二壬基-2,2'-联吡啶的配合物的制备及排放Langmuir-Blodgett电影中的电影属性

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摘要

Ternary europium. complexes were formed at the air-water interface mediated by monolayers of 4,4'-dinonyl-2,2'-dipyridyl (DNDPy) and 4'-(4-methylphenyl)-2,2':6',2"-terpyfidine (MPTPy). A saturated Eu(TTA)(3) (TTA: theonyltrifluoroacetone) aqueous solution was used as subphase, on the surface of which condensed DNDPy and MPTPy monolayers could be stabilized. The DNDPy-/MPTPy-Eu(TTA)(3) layers were transferred onto either hydrophobic or hydrophilic substrate surfaces by Langmuir-Blodgett (LB) method. Fluorescence spectra showed several sharp peaks corresponding to Eu3+ emissions from D-5(1) -> F-7(1) (535nm) and D-5(0) -> F-7(0,1,2,3) (580, 595, 612 and 650nm). A relative stronger emission from D-5(0) -> F-7(2) to that from D-5(0) -> F-7(2) was recorded for the LB films of DNDPy-Eu(TTA)(3) complex. Compared with that in solution, longer fluorescence lifetime was observed for the complexes in the LB films. (c) 2005 Elsevier B.V. All rights reserved.
机译:三元euro。 4,4'-二壬基-2,2'-联吡啶(DNDPy)和4'-(4-甲基苯基)-2,2':6',2“-用三联吡啶(MPTPy)。饱和的Eu(TTA)(3)(TTA:壬基三氟丙酮)水溶液作为亚相,在其表面上可以稳定DNDPy和MPTPy单层的缩合.DNDPy- / MPTPy-Eu(TTA) (3)通过Langmuir-Blodgett(LB)方法将层转移到疏水性或亲水性基材表面上,荧光光谱显示了几个尖峰,对应于D-5(1)-> F-7(1)(535nm)的Eu3 +发射。和D-5(0)-> F-7(0,1,2,3)(580、595、612和650nm)。D-5(0)-> F-7(2)的发射相对较强DNDPy-Eu(TTA)(3)配合物的LB薄膜记录了从D-5(0)-> F-7(2)的变化,与溶液相比,荧光体的荧光寿命更长。 (c)2005 Elsevier BV保留所有权利。

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