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Columnar phases from covalent and hydrogen-bonded liquid-crystalline ferrocene derivatives
Auteur(s)
Monnet, Florence
Serrano, Elisabeth
Turpin, Francois
Levelut, Anne-Marie
Date de parution
1998
In
Helv. Chim. Acta
Vol.
11
No
81
De la page
2072
A la page
2077
Résumé
The synthesis and liq.-cryst. properties of tetracatenar covalent and H-bonded bis-ferrocene derivs. are reported. Both compds. gave rise to enantiotropic columnar liq.-cryst. behavior with a hexagonal mol. organization. To explore the possibility to obtain also calamitic liq.-cryst. phases from H-bonded ferrocene-contg. liq. crystals, a rod-shaped ferrocene mesogen was synthesized, which gave rise to enantiotropic smectic C and smectic A phases. For the 1st time, a rational synthetic design at the ferrocene level led to ferrocene-based liq.-crystals with columnar behavior and to H-bonded metallomesogens. [on SciFinder(R)]
Identifiants
Type de publication
journal article
