Viologen-based ionic liquid crystals: induction of a smectic A phase by dimerisation.
The stability of thermotropic ionic liquid crystals is essentially due to micro-phase segregation between the ionic heads and the long alkyl chains. Here we show, using newly synthesized viologen dimers, that the structure of the central core is another key parameter to play with in order to tune the mesomorphic behaviour.
Dipartimento di Scienze Chimiche, Università di Padova, Via Marzolo, 1 - 35131 Padova, Italy.
Girolamo
G
Casella
Valerio
V
Causin
Federico
F
Rastrelli
Giacomo
G
Saielli