Thermally Activated Delayed Fluorescence in Neutral and Cationic Copper(I) Complexes with the 2-(4-Thiazolyl)benzimidazole Ligand

Overview

Journal Inorg Chem

Specialty Chemistry

Date 2023 Jun 22

PMID 37348058

Authors

Adrian Alconchel

Olga Crespo

M Concepcion Gimeno

Affiliations

Soon will be listed here.

Abstract

Cationic [Cu(P^P)(Htbz)]PF [P^P = xantphos, dpephos; Htbz = 2-(4-thiazolyl)benzimidazole] and the corresponding neutral complexes [Cu(P^P)(tbz)], obtained through deprotonation of the diimine ligand, have been synthesized with the aim of analyzing the role of the diphosphane and Htbz deprotonation in the emissive properties of these complexes. For the study of the diphosphane effect, the luminescence properties of these compounds have been compared with those of the reported analogous derivatives with Htbz and carborane diphosphanes. Complexes [Cu(P^P)(Htbz)]PF (P^P = xantphos, dpephos) and [Cu(dpephos)(tbz)] display thermally activated delayed fluorescence, which has been studied, revealing a Δ(S-T) between 658 and 455 cm. Theoretical calculations indicate different origins for the absorptions, leading to the observed emissions.

Citing Articles

Thermally Activated Delayed Fluorescence (TADF) Materials Based on Earth-Abundant Transition Metal Complexes: Synthesis, Design and Applications.

Ferraro V, Bizzarri C, Brase S Adv Sci (Weinh). 2024; 11(34):e2404866.

PMID: 38984475 PMC: 11426009. DOI: 10.1002/advs.202404866.

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