-Heterocyclic Carbene Copper (I) Complexes Incorporating Pyrene Chromophore: Synthesis, Crystal Structure, and Luminescent Properties

Overview

Journal Molecules

Publisher MDPI

Specialty Biology

Date 2023 May 27

PMID 37241767

Authors

Yaping Cheng

Geoffrey Gontard

Abderrahim Khatyr

Michael Knorr

Hani Amouri

Affiliations

Soon will be listed here.

Abstract

Luminescent -heterocyclic carbene chloride copper (I) complexes incorporating pyrene chromophore (1-Pyrenyl-NHC-R)-Cu-Cl, (, ) have been prepared and fully characterized. Two complexes were prepared with R = methyl () and R = naphthyl groups () at the nitrogen center of the carbene unit to tune their electronic properties. The molecular structures of and have been elucidated by X-ray diffraction and confirm the formation of the target compounds. Preliminary results reveal that all compounds including the imidazole-pyrenyl ligand are emissive in the blue region at room temperature in solution and in solid-state. All complexes display quantum yields comparable or higher when compared to the parent pyrene molecule. Interestingly replacement of the methyl by naphthyl group increases the quantum yield by almost two-folds. These compounds might show promise for applications as optical displays.

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