Preliminary Communications Thermotropic liquid crystal behaviour of 5,5'-[(4-hexadecyloxyphenyl)ethynyl]-2,2'-bipyridine
Titel:
Preliminary Communications Thermotropic liquid crystal behaviour of 5,5'-[(4-hexadecyloxyphenyl)ethynyl]-2,2'-bipyridine
Auteur:
El-Ghayoury, Abdelkrim Douce, Laurent Ziessel, Raymond Seghrouchni, Rachid Skoulios, Antoine
Verschenen in:
Liquid crystals
Paginering:
Jaargang 21 (1996) nr. 1 pagina's 143-146
Jaar:
1996-07-01
Inhoud:
5,5'-[(4-Hexadecyloxyphenyl)ethynyl]-2,2'-bipyridine was synthesized by a palladium(O) cross-coupling reaction. Its thermotropic liquid crystalline behaviour was analysed using differential scanning calorimetry, polarizing microscopy, and X-ray diffraction. Three enantiotropic tilted smectic phases were identified upon heating: SF, SI, and SC.