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Carbazolophane Enhances the Efficiency of Thermally Activated Delayed Fluorescence in Carbene Coinage Metal Amides

27 March 2023, Version 1
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Carbene coinage metal carbazolates are currently the most efficient organometallic TADF emitters. Herein we report on the photophysical influence of introducing a [2.2]paracyclophane moiety via a carbazolophane ligand instead of carbazolate, which greatly enhances the radiative rate constants by a factor of three to 1-3·106 s-1 for triplet exciton emission.

Keywords

TADF
Coinage metal complexes
intersystem-crossing
carbenes
paracyclophane
carbazole

Supplementary materials

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Description
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Supporting Information
Description
Spectra, characterization of the compounds, details of photophysical studies and TDDFT studies. Details of X-ray diffraction.
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Version History

Mar 27, 2023 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-snwpg
D O I: 10.26434/chemrxiv-2023-snwpg [opens in a new tab]

Funding

Deutsche Forschungsgemeinschaft
STE1834/4-2
China Scholarship Council
201806890001

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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