Synthesis and characterisation of ionic liquid crystals based on substituted pyridinium cations

Andreia F. M. Santos, Carlos Cruz, Maria H. Godinho, Madalena Dionísio, João L. Figueirinhas & Luis C. Branco
Novel ionic liquid crystals based on pyridinium and methylpyridinium cations with a dodecyl chain and bromide as anion have been prepared and characterised. [C12Pyr][Br] and [C12-n-Pic][Br] (n = 2, 3 or 4) were studied in order to understand the influence of the methyl group position in the mesomorphic behaviour. Neat microwave-assisted reactions were carried out to synthesised [C12Pyr][Br], [C12-3-Pic][Br] and [C12-4-Pic][Br] as a sustainable approach, leading to significantly reduced reaction times (35 min vs. 48...
1 citation reported since publication in 2022.
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