Thermally activated delayed fluorescence in neutral and cationic copper(I) complexes with the 2-(4-Thiazolyl)benzimidazole ligand

Alconchel, A. ; Crespo, O. (Universidad de Zaragoza) ; Gimeno, M. C.

Resumen: Cationic [Cu(P^P)(Htbz)]PF6 [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)]PF6 (P^P = xantphos, dpephos) and [Cu(dpephos)(tbz)] display thermally activated delayed fluorescence, which has been studied, revealing a ΔE(S1–T1) between 658 and 455 cm–1. Theoretical calculations indicate different origins for the absorptions, leading to the observed emissions.

Idioma: Inglés

DOI: 10.1021/acs.inorgchem.3c01409

Año: 2023

Publicado en: Inorganic Chemistry 62, 26 (2023), 10431-10439
ISSN: 0020-1669

Factor impacto JCR: 4.3 (2023)

Categ. JCR: CHEMISTRY, INORGANIC & NUCLEAR rank: 8 / 44 = 0.182 (2023) - Q1 - T1

Factor impacto CITESCORE: 7.6 - Inorganic Chemistry (Q1) - Physical and Theoretical Chemistry (Q1)

Factor impacto SCIMAGO: 0.928 - Chemistry (miscellaneous) (Q1) - Physical and Theoretical Chemistry (Q1) - Inorganic Chemistry (Q1)

Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2019-104379RB-C21
Financiación: info:eu-repo/grantAgreement/ES/DGA/E07-23R
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BES2017-082997

Tipo y forma: Article (Published version)

Área (Departamento): Área Química Inorgánica (Dpto. Química Inorgánica)