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手性双核镧系金属配合物,源于 S-和 R-2-(6-甲氧基-2-萘基)丙酸。光学和磁学性质。

Chiral dinuclear Ln(iii) complexes derived from S- and R-2-(6-methoxy-2-naphthyl)propionate. Optical and magnetic properties.

机构信息

Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.

出版信息

Dalton Trans. 2019 Feb 5;48(6):2059-2067. doi: 10.1039/c8dt04149k.

DOI:10.1039/c8dt04149k
PMID:30656303
Abstract

The reaction of LnCl3·6H2O with (S)-(+)-2-(6-methoxy-2-naphthyl)propionic acid (S-HL), best known as naproxen, and 1,10-phenanthroline (phen) in EtOH allows the isolation of dinuclear chiral compounds S-1-4 of the formula [Ln2(S-L)6(phen)2]·3DMF·H2O [Ln(iii) = Eu (1), Gd (2), Tb (3) and Dy (4)]. The use of the R-enantiomeric species of the HL ligand led to complexes R-1-4 with the formula [Ln2(R-L)6(phen)2]·3DMF·H2O. Compounds R- andS-1, 3 and 4 show strong sensitized metal-centred luminescence in the visible region. Moreover, Dy(iii) complexes R- andS-4 display field-induced single-molecule magnet (SMM) behaviour. For chiral and emissive compounds circularly polarized luminescence (CPL) measurements have also been performed.

摘要

LnCl3·6H2O 与(S)-(+)-2-(6-甲氧基-2-萘基)丙酸(以萘普生而闻名)和 1,10-菲咯啉(phen)在 EtOH 中的反应允许分离出[Ln2(S-L)6(phen)2]·3DMF·H2O [Ln(iii)= Eu(1),Gd(2),Tb(3)和 Dy(4)]的双核手性化合物 S-1-4。使用 HL 配体的 R-对映异构体导致具有[Ln2(R-L)6(phen)2]·3DMF·H2O 公式的配合物 R-1-4。R-和 S-1、3 和 4 显示出在可见区域强烈敏化的金属中心发光。此外,Dy(iii)配合物 R-和 S-4 显示出场诱导的单分子磁体(SMM)行为。对于手性和发光化合物,还进行了圆偏振发光(CPL)测量。

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