Search results for "Halochromism"

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Tristriazolotriazines with π-Conjugated Segments: Star-Shaped Fluorophors and Discotic Liquid Crystals

2012

C3-symmetrical tristriazolotriazines substituted with phenylene rings carrying lateral flexible alkoxy side chains were prepared via condensation/ring transformation of cyanuric chloride and tetrazoles. These star-shaped, planar compounds can form broad thermotropic mesophases. Due to the extensive π-conjugation, these compounds are highly emissive and the octupolar donor-acceptor electronic structure results in non-linear optical properties like solvatochromism. Brønstedt acids provoke halochromism of the absorption and of the fluorescence.

chemistry.chemical_compoundMaterials sciencechemistryPhenyleneDiscotic liquid crystalCyanuric chlorideSolvatochromismHalochromismSide chainColumnar phasePhotochemistryThermotropic crystalAdvances in Science and Technology

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