In solution sensitization of Er(III) luminescence by the 4-tetrathiafulvalene-2,6-pyridinedicarboxylic acid dimethyl antenna ligand

Fabrice Pointillart; Adrien Bourdolle; Thomas Cauchy; Olivier Maury; Yann Le Gal; Stéphane Golhen; Olivier Cador; Lahcène Ouahab

doi:10.1021/ic202045a

In solution sensitization of Er(III) luminescence by the 4-tetrathiafulvalene-2,6-pyridinedicarboxylic acid dimethyl antenna ligand

Inorg Chem. 2012 Jan 16;51(2):978-84. doi: 10.1021/ic202045a. Epub 2011 Dec 30.

Authors

Fabrice Pointillart¹, Adrien Bourdolle, Thomas Cauchy, Olivier Maury, Yann Le Gal, Stéphane Golhen, Olivier Cador, Lahcène Ouahab

Affiliation

¹ Organométalliques et Matériaux Moléculaires, UMR 6226 CNRS-UR1 Sciences Chimiques de Rennes, Université de Rennes 1, 35042 Rennes Cedex, France.

PMID: 22208478
DOI: 10.1021/ic202045a

Abstract

In the [Er(hfac)(3)(L)](2) complex (1) (L = 4-tetrathiafulvalene-2,6-pyridinecarboxylic acid dimethyl ester), the Er(III) ion is bonded to the tridentate coordination site. Electrochemical and photophysical measurements in solution reveal that the tetrathiafulvalene moiety is a versatile antenna for erbium luminescence sensitization at 6540 cm(-1) upon excitation in the low-energy charge transfer transition (donor to acceptor charge transfer) at 16600 cm(-1) assigned via time-dependent density functional theory calculations.