Issue 41, 2019

Highly soluble fluorine containing Cu(i) AlkylPyrPhos TADF complexes

Abstract

Luminescent Cu(I) AlkylPyrPhos complexes with a butterfly-shaped Cu2I2 core and halogen containing ancillary ligands, with a special focus on fluorine, have been investigated in this study. These complexes show extremely high solubilities and a remarkable (photo)chemical stability in a series of solvents. A tunable emission resulting from thermally activated delayed fluorescence with high quantum yields was determined by luminescence and lifetime investigations in solvents and solids. Structures of the electronic ground states were analyzed by single crystal X-ray analysis. The structure of the lowest excited triplet state was determined by transient FTIR spectroscopy, in combination with quantum chemical calculations. With the obtained range of compounds we address the key requirement for the production of organic light emitting diodes based on solution processing.

Graphical abstract: Highly soluble fluorine containing Cu(i) AlkylPyrPhos TADF complexes

Supplementary files

Article information

Article type
Paper
Submitted
09 Jūn. 2019
Accepted
20 Aug. 2019
First published
21 Aug. 2019
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2019,48, 15687-15698

Highly soluble fluorine containing Cu(I) AlkylPyrPhos TADF complexes

J. M. Busch, D. M. Zink, P. Di Martino-Fumo, F. R. Rehak, P. Boden, S. Steiger, O. Fuhr, M. Nieger, W. Klopper, M. Gerhards and S. Bräse, Dalton Trans., 2019, 48, 15687 DOI: 10.1039/C9DT02447F

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