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  4. Hexacatenar liquid-crystalline complexes of palladium(II) and platinum(II) based on trialkoxystilbazole esters
 
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Hexacatenar liquid-crystalline complexes of palladium(II) and platinum(II) based on trialkoxystilbazole esters

Auteur(s)
Plasseraud, Laurent
Gonzalez Cuervo, Laura
Guillon, Daniel
Süss-Fink, Georg 
Institut de chimie 
Deschenaux, Robert 
Institut de chimie 
Bruce, Duncan W.
Donnio, Bertrand
Date de parution
2002
In
Journal of Materials Chemistry, 2002/12/2653-2658
Résumé
The synthesis and characterisation of 4-(3,4,5-trialkoxybenzoyloxy)pyridines (<b>1a–e</b>), and of their corresponding palladium(II), (<b>2a–e</b>), and platinum(II), (<b>3a–e</b>), complexes are described. The pyridine-based ligands are not mesomorphic, but upon complexation to PdCl<sub>2</sub> or PtCl<sub>2</sub>, new hexacatenar mesogens are formed which show exclusively the hexagonal columnar mesophase. The mesomorphic behaviour of the complexes was characterised by polarised optical microscopy, differential scanning calorimetry and X-ray diffraction. The metal seems to influence the crystal phase and mesophase stability as well as the mesomorphic temperature range.
Identifiants
https://libra.unine.ch/handle/123456789/18777
_
10.1039/b203889g
Type de publication
journal article
Dossier(s) à télécharger
 main article: 1_Plasseraud_Laurent_-_Hexcatenar_liquid-crystalline_complexes_20060508.pdf (547.25 KB)
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