Luminescent Langmuir-Blodgett film of a new amphiphilic Eu3+ β-diketonate
Luminescent Langmuir-Blodgett film of a new amphiphilic Eu3+ β-diketonate
复制标题
DOI：
10.1016/j.jlumin.2008.01.002
复制
发表时间：
2008-08-01
影响因子：
3.6
通讯作者：
Serra, Osvaldo A.
中科院分区：
文献类型：
--
作者：
Gomes, Luciano F.;de Oliveira, Kleber T.;Serra, Osvaldo A.
本文报道了配体3-十六烷基戊烷-2，4-二酮（Hhdacac）及其Eu ~（3+）配合物Eu（hdacac）（6）中心点2 H（2）O，Eu（hdacac）（6）中心点phen和Eu（hdacac）（6）中心点tta的合成与表征，其中phen和tta分别表示1，10-菲咯啉和噻吩甲酰三氟丙酮。这些新化合物呈现长碳链，它们在非极性环境中的预期可吸收性通过Eu（hdacac）6中心点tta在己烷中的发射光谱得到证实。此外，Eu（hdacac）6配合物的两亲性允许通过Langmuir-Blodgett技术获得薄的发光膜。在这两种情况下（固体和薄膜），观察到典型的天线效应的β-二酮。这些化合物的诱人特性在材料科学的许多领域引起了极大的兴趣，如光致发光和电致发光材料（主要是薄的“有机”薄膜），非极性溶液中的金属催化剂或探针，以及几种成分的Langmuir-Blodgett薄膜。对于这些产品的表征，核磁共振光谱（H-1 NMR），热重分析，元素分析（C，H），扫描电子显微镜（能量色散X射线光谱），吸收（UV-vis/FT-IR）和光致发光光谱进行了使用。(c)2008 Elsevier B. V.保留所有权利。
This work reports on the synthesis and characterization of the ligand 3-hexadecylpentane-2,4-drone (Hhdacac) and its Eu3+ complexes Eu(hdacac)(6) center dot 2H(2)O, Eu(hdacac)(6) center dot phen and Eu(hdacac)(6) center dot tta, where phen and tta denote 1,10-phenanthroline and thenoyltrifluoroacetone, respectively. These new compounds present long carbon chains and their expected miscibility into non-polar ambients is confirmed by the emission spectra of Eu(hdacac)6 center dot tta in hexane. Moreover, the amphiphilic properties of Eu(hdacac)6 complexes allow the obtainment of thin luminescent films by the Langmuir-Blodgett technique. In both cases (solids and films), the typical antenna effect of beta-diketonates is observed. The alluring characteristics of these compounds raise great interest in many fields of Materials Science, like photo- and electro-luminescent materials (mainly thin "organic" films), metal catalysts or probes in non-polar solutions, and Langmuir-Blodgett films of several compositions. For the characterization of these products, nuclear magnetic resonance spectroscopy (H-1 NMR), thermogravimetric analysis, elementary analyses (C, H), scanning electron microscopy (energy dispersive X-ray spectroscopy), absorption (UV-vis/FT-IR) and photoluminescence spectroscopies were used. (c) 2008 Elsevier B.V. All rights reserved.