Tetrahedron
Tetrahedron
5 years ago

Methimazolium-based ionic liquid crystals: Emergence of mesomorphic properties via a sulfur motif

Methimazolium-based ionic liquid crystals: Emergence of mesomorphic properties via a sulfur motif
We describe the proficient synthesis and thermotropic mesomorphicity of thioether–functionalized imidazolium–type ionic liquids containing C12 and C18 chains associated with Br− and OTf− anions. The mesomorphic behavior and phase transition temperatures were studied by Polarizing Optical Microscopy (POM), Differential Scanning Calorimetry (DSC) and Small-Angle X-ray Scattering (SAXS). The ionic liquids with bromide anion display Smectic A lamellar phase giving homeotropic and fan-shaped textures. The layered crystallographic structure is reported by Single-Crystal XRD. The electrochemical characteristics of the ionic liquids with C18 side chain have been determined via Cyclic Voltammetry.

Publisher URL: www.sciencedirect.com/science

DOI: S0040402017308074

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