New luminescent copper(I) complexes with extended pi-conjugation - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Polyhedron Année : 2018

New luminescent copper(I) complexes with extended pi-conjugation

Résumé

While copper(I)-bis(diimine) complexes [Cu-I(L)(2)](+) are considered as potent substitutes for [Ru-II(bpy)(3)](2+), they exhibit low molar extinction coefficients with respect to ruthenium parent analogues. One interesting possibility to improve the light collection ability of [Cu-I(L)(2)](+) consists in increasing the length of the Cu-L dipole. In order to achieve this goal, we propose in this contribution to fuse aromatic rings onto the 2,9-di-nbutyl-1,10-phenanthroline core and examine how the properties of the corresponding copper(I) complexes are impacted. Electrochemical, absorption and emission properties are assessed; rewardingly, the envisioned approach was successful since extinction coefficients above 10,000 M-1.cm(-1) were measured. All copper(I) complexes remain photoluminescent, with emission maxima greatly varying from 725 to 815 nm, strongly affected by the molecular structures. A rationale to explain the variations of the emission quantum yields is proposed. (C) 2017 Elsevier Ltd. All rights reserved.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-02141016 , version 1 (27-05-2019)

Identifiants

Citer

Kevin Soulis, Christophe Gourlaouen, Chantal Daniel, Alessia Quatela, Fabrice Odobel, et al.. New luminescent copper(I) complexes with extended pi-conjugation. Polyhedron, 2018, 140 (SI), pp.42-50. ⟨10.1016/j.poly.2017.11.026⟩. ⟨hal-02141016⟩
16 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More