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

被引：22

作者：

Kanesato, Masatoshi ^{[1
]}

Nagahara, Keiko

Igarashi, Kazuki ^{[1
]}

Sato, Ken-ichi ^{[1
]}

Kikkawa, Yoshihiro ^{[1
]}

Goto, Midori ^{[2
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Photon Res Inst, Tsukuba, Ibaraki 3058562, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tech Serv Ctr, Tsukuba, Ibaraki 3058565, Japan

来源：

INORGANICA CHIMICA ACTA | 2011年 / 367卷 / 01期

关键词：

Yttrium; Europium; Schiff-base; Tripodal ligand; Helical structure; Emission properties; IMPROVED RELAXATION EFFICIENCY; LANTHANIDE COMPLEXES; STRUCTURAL-CHARACTERIZATION; CONTRAST AGENTS; N4O3; LIGAND; LUMINESCENCE; WATER; COORDINATION; IONS; CARBOXYLATES;

D O I：

10.1016/j.ica.2010.12.001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：225 / 229

页数：5

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