123126-41-0Relevant articles and documents
Tetrakis(Oxadiazolylphenyl)pyrazines: New st. Andrew’s cross-shaped liquid crystals
R?der, Nico,Marszalek, Tomasz,Limbach, Daniel,Pisula, Wojciech,Detert, Heiner
, p. 463 - 469 (2019/06/03)
π-Conjugated molecules with the shape of St. Andrew’s cross have been synthesized via fourfold Huisgen reaction. Four 2,5- diaryl-1,3,4-oxadiazol arms are attached to a central pyrazine nucleus. These fluorescent stars, when decorated with a rim of eight alkoxy side chains are discotic liquid crystals. Depending on the substitution pattern, the width of the liquid phase varies within a broad range of 25°C to 250°C. In their liquid crystalline phase, the molecules assemble in a typical hexagonal columnar supramolecular arrangement.
Synthesis of oligopyridinic scaffolds from amido substituted phenyl rings for extended hydrogen bonding
Pickaert, Guillaume,Ziessel, Raymond
, p. 2716 - 2726 (2007/10/03)
A series of phenanthroline, terpyridine and pyridino-oxazoline ligands combining a 4-methyl-3,5-diacylaminophenyl platform and two dialkoxyphenyl groups has been prepared by a linear multistep protocol. The synthetic potential of 4-methyl-3,5-(diacyl-amin
Synthesis, Liquid Crystals and Photochemistry of Di- and Tristyrylbenzenes with Alkoxy Side Chains
Zerban, Georg,Meier, Herbert
, p. 171 - 184 (2007/10/02)
The all-(E)-configurated distyrylbenzenes 4a-g and 1,3,5-tristyrylbenzenes 6a,b,g were prepared by stereoselective condensation reactions of azomethines 2 and methylarenes 3 and 4, respectively. 4a,b,d and e generate light sensitive liquid crystals due to