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

Date

2014-08-04

Author

Asil Alptekin, Demet
Patra, Asit
de Hatten, Xavier
del Barrio, Jesus
Scherman, Oren A.
Nitschke, Jonathan R.
Friend, Richard H.

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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.

Subject Keywords

General Chemistry, Catalysis

URI

https://hdl.handle.net/11511/48832

Journal

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

DOI

https://doi.org/10.1002/anie.201404186

Collections

Department of Chemistry, Article

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Citation Formats

D. Asil Alptekin et al., “Temperature- and Voltage-Induced Ligand Rearrangement of a Dynamic Electroluminescent Metallopolymer,” ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, pp. 8388–8391, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48832.