Gold- and silver-based ionic liquids: modulation of luminescence depending on the physical state

Alexei Tokarev (1) , Joulia Larionova (1) , Yannick Guari (1) , Christian Guérin (1) , José M. López-De-Luzuriaga (2) , Miguel Monge (2) , Christophe Blanc (3, 4) , Philippe Dieudonne-George (3, 4)

1 ICGM ICMMM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
2 UR - Universidad de La Rioja
3 L2C - Laboratoire Charles Coulomb
4 LCVN - Laboratoire des colloïdes, verres et nanomatériaux

A series of gold- and silver-containing ionic liquids, [CnMIM][M(CN)2] (M = Au, Ag; n = 12, 14, 18), prepared by metathesis reactions, present luminescence depending on their physical state i.e. crystalline or smectic A phases. The photoluminescent measurements as well as DFT calculations suggest that the modulation of aurophilic intermolecular interactions are responsible for this phosphorescent behaviour.

Domaines: Matière Molle [cond-mat.soft]

Alexei Tokarev, Joulia Larionova, Yannick Guari, Christian Guérin, José M. López-De-Luzuriaga, et al.. Gold- and silver-based ionic liquids: modulation of luminescence depending on the physical state. Dalton Transactions, 2010, 39 (44), pp.10574. ⟨10.1039/C0DT00583E⟩. ⟨hal-01224601⟩