Experimental synthesis reveals smectic A phase induction in viologen ionic liquid crystals via dimerization, indicating that central core structure effectively tunes mesomorphic behavior.
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.
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Casella et al. (2014) studied this question.
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