Study on the thermotropic properties of highly fluorinated 1,2,4-oxadiazolylpyridinium salts and their perspective applications as ionic liquid crystals

6533b85dfe1ef96bd12be78d

RESEARCH PRODUCT

Study on the thermotropic properties of highly fluorinated 1,2,4-oxadiazolylpyridinium salts and their perspective applications as ionic liquid crystals

Silvestre Buscemi Roberto Triolo Nicolò Vivona Alessandro Triolo Fabrizio Lo Celso Ivana Pibiri Andrea Pace

subject

Thermochromism Photoluminescence Chemistry Organic salts ionic liquid crystals perfluoroalkyl oxadiazolylpyridinium General Chemistry Thermotropic crystal law.invention Crystallography chemistry.chemical_compound Differential scanning calorimetry Optical microscope law Liquid crystal Phase (matter)Ionic liquid Materials Chemistry

description

A new series of fluorinated salts, iodides and trifluoromethanesulfonates, was synthesized from perfluoroalkylated 1,2,4-oxadiazolylpyridines. Their thermotropic properties were investigated by combined temperature resolved small angle and wide angle X-ray scattering, differential scanning calorimetry and polarised optical microscopy. The UV–visible and photoluminescence properties were studied for all compounds. The results showed for two compounds the existence of an enantiotropic mesomorphic smectic liquid crystal phase. All iodides showed thermochromism phenomena suggesting prospective applications in optoelectronics.

year	journal	country	edition	language
2007-01-01	Journal of Materials Chemistry

https://doi.org/10.1039/b615190f

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