ou physique

Linear and nonlinear optical properties of tris-cyclometalated phenylpyridine Ir(III) complexes incorporating π-conjugated substituents.

Publié le - Inorganic Chemistry

Auteurs : Moussa Zaarour, Anu Singh, Camille Latouche, J. A. Gareth Williams, Isabelle Ledoux-Rak, Joseph Zyss, Abdou Boucekkine, Hubert Le Bozec, Véronique Guerchais, Claudia Dragonetti, Alessia Colombo, Dominique Roberto, Adriana Valore

The synthesis, luminescence, and nonlinear optical properties of a new series of Ir(ppy)3 (ppy = 2-phenylpyridine) complexes incorporating π-extended vinyl-aryl substituents at the para positions of their pyridine rings are reported. Appropriate substitution of the pyridyl rings allows the tuning of the luminescence properties and the second-order nonlinear optical response of this unusual family of three-dimensional chromophores. Theoretical calculations were performed to evaluate the dipole moments, to gain insight into the electronic structure, and to rationalize the observed optical properties of the investigated complexes.