Synthesis, characterization and emission properties of yttrium(III) and europium(III) complexes of a tripodal heptadentate Schiff-base ligand N[CH2CH2N=CH(2-OH-3-MeC6H3)]3
Synthesis, characterization and emission properties of yttrium(III) and europium(III) complexes of a tripodal heptadentate Schiff-base ligand N[CH2CH2N=CH(2-OH-3-MeC6H3)]3
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DOI：
10.1016/j.ica.2010.12.001
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发表时间：
2011-02-28
影响因子：
2.8
通讯作者：
Goto, Midori
中科院分区：
文献类型：
--
作者：
Kanesato, Masatoshi;Nagahara, Keiko;Goto, Midori
本文研究了钇（Ⅲ）和铕（Ⅲ）的三足七齿Schiff碱配体N[CH_2CH_2N =CH（2-OH-3-MeC_6 H_3）]（3）（H_3L_1）配合物的合成与表征。这些配合物是由三（2-氨基乙基）胺与3-甲基水杨醛在M（CF_3SO_3）（3）（M = Y，Eu）存在下在甲醇中反应制得的。[YL 1]（1）和[EuL 1]（2）的分子结构用X射线衍射法测定。晶体结构分析表明，希夫碱的行为作为一个三去质子化的七齿配体封装内的N4 O3腔的金属离子。在紫外光的激发下，这些配合物的固态分别呈现蓝色和红色的发光。研究了化合物1和2在溶液和固体中的光学性质。(C)2010 Elsevier B. V.保留所有权利。
The preparation and characterization of yttrium(III) and europium(III) complexes of tripodal heptadentate Schiff-base ligand N[CH2CH2N=CH(2-OH-3-MeC6H3)](3) (H3L1) have been studied. These complexes were prepared by the reaction of tris(2-aminoethyl) amine with 3-methylsalicylaldehyde in presence of M(CF3SO3)(3) (M = Y, Eu) in methanol. The molecular structures of [YL1] (1) and [EuL1] (2) were determined by X-ray crystallography. The crystal structure analysis revealed that the Schiff-base behaves as a tri-deprotonated heptadentate ligand encapsulating the metal ion within the N4O3 cavity. Under the excitation of UV light, the solid state of these complexes exhibited blue and red emission, respectively. The optical properties of 1 and 2 in solution and in the solid state were examined. (C) 2010 Elsevier B.V. All rights reserved.