Synthesis of Fluorinated Bent-Core Mesogens (BCMs) Containing the 1,2,4-Oxadiazole Ring
- Authors: Palumbo Piccionello, A; Calabrese, A; Pibiri, I; Giacalone, V; Pace, A; Buscemi, S
- Publication year: 2015
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/141646
Abstract
New fluorinated bent-core mesogens containing the 1,2,4-oxadiazole or 1,2,4-triazole nucleus have been synthesized taking advantage of the ANRORC (Addition of Nucleophile, Ring-Opening, Ring-Closure) reactivity of 5-perfluoroalkyl-1,2,4-oxadiazoles. Physical state changes of the obtained compounds were characterized through DSC, POM, and SAXS. Besides the formation of a smectic mesophase, a novel behavior as organic molecular glass was evidenced for some 1,2,4-oxadiazole derivatives.