Efficient luminescence control in dithienylethene functionalized cyclen macrocyclic lanthanide complexes

被引：7

作者：

Al Sabea, Hassan ^{[1
]}

Hamon, Nadege ^{[2
]}

Galangau, Olivier ^{[1
]}

Norel, Lucie ^{[1
]}

Maury, Olivier ^{[3
]}

Riobe, Francois ^{[3
]}

Tripier, Raphael ^{[2
]}

Rigaut, Stephane ^{[1
]}

机构：

[1] Univ Rennes, ISCR Inst Sci Chim Rennes, CNRS, UMR 6226, F-35000 Rennes, France

[2] Univ Brest, UMR CNRS CEMCA 6521, 6 Ave Victor Le Gorgeu, F-29200 Brest, France

[3] Univ Claude Bernard Lyon 1, Lab Chim, Univ Lyon, ENS Lyon,CNRS,UMR 5182, F-69342 Lyon, France

来源：

INORGANIC CHEMISTRY FRONTIERS | 2020年 / 7卷 / 16期

关键词：

EUROPIUM(III) COMPLEX; SWITCH; MODULATION; MOLECULES; ANTENNA;

D O I：

10.1039/d0qi00354a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report the synthesis of an original ligand scaffold based on a dimethyl-cyclen platform Medo2pa with two dithienylethene units attached to each picolinate arm and the corresponding yttrium(iii), europium(iii) and ytterbium(iii) complexes. All three compounds show reversible photochromism with high photo-conversions. Photoluminescence experiments demonstrate that this design is versatile and adapted for both europium and ytterbium emission switching when measured in frozen organic glasses at 77 K. The OFF/ON luminescence ratio is excellent in the case of europium (4 to 8%) and still quite good in the case of ytterbium (around 13%).

引用

页码：2979 / 2989

页数：11

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