Crystalline-like structures and multilayering in Langmuir films of ionic liquids at the air–water interface

Eduardo. J. M. Filipe (1) , Pedro Morgado (1) , Miguel Teixeira (1) , Karina Shimizu (1) , Nathalie Bonatout (2, 3) , Michel Goldmann (4, 5) , José Nuno Canongia Lopes (1)

1 CQE - Centro de Quimica Estrutural
2 INSP - Institut des Nanosciences de Paris
3 LICORNE - Laboratoire des Interfaces Complexes et de l'Organisation Nanométrique
4 INSP-E6 - Physico-chimie et dynamique des surfaces
5 SSOLEIL - Synchrotron SOLEIL

Langmuir films of [C18mim][NTf2] ionic liquid exhibited, for the first time, the reversible formation of crystalline-like structures at the surface of water, compatible with the formation of multilayers. Atomistic molecular dynamics simulation results support the experimental findings, unambiguously indicating the existence of a trilayer.

Domaines: Chimie

Eduardo. J. M. Filipe, Pedro Morgado, Miguel Teixeira, Karina Shimizu, Nathalie Bonatout, et al.. Crystalline-like structures and multilayering in Langmuir films of ionic liquids at the air–water interface. Chemical Communications, 2016, 52 (32), pp.5585-5588. ⟨10.1039/c6cc01368f⟩. ⟨hal-01314512⟩