Temperature- and Voltage-Induced Ligand Rearrangement of a Dynamic Electroluminescent Metallopolymer

被引：71

作者：

Asil, Demet ^{[1
]}

Foster, Jonathan A. ^{[2
]}

Patra, Asit ^{[2
]}

de Hatten, Xavier ^{[2
]}

del Barrio, Jesus ^{[2
]}

Scherman, Oren A. ^{[2
]}

Nitschke, Jonathan R. ^{[2
]}

Friend, Richard H. ^{[1
]}

机构：

[1] Univ Cambridge, Dept Phys, Cambridge CB3 OHE, England

[2] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 32期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会;

关键词：

copper; gels; luminescence; polymers; self-assembly; EMITTING ELECTROCHEMICAL-CELLS; CU-I COMPLEXES; SUPRAMOLECULAR POLYMERS; AGGREGATION; CHEMISTRY; GROWTH; WATER;

D O I：

10.1002/anie.201404186

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A dynamic-covalent metal-containing polymer was synthesized by the condensation of linear diamine and dialdehyde subcomponents around copper(I) templates in the presence of bidentate phosphine ligands. In solution, the red polymers undergo a sol-gel transition upon heating to form a yellow gel, a process that can be either reversible or irreversible depending on the solvent used. When fabricated into a light-emitting electrochemical cell (LEC), the polymer emits infrared light at low voltage. As the voltage is increased, a blue shift in the emission wavelength is observed until yellow light is emitted, a process which is gradually reversed over time upon lowering the voltage. The mechanism underlying these apparently disparate responses is deduced to be due to loss of the copper phosphine complex from the polymer.

引用

页码：8388 / 8391

页数：4

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