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Columnar Phases from Covalent and Hydrogen-Bonded Liquid-Crystalline Ferrocene Derivatives

Deschenaux, Robert ; Monnet, Florence ; Serrano, Elisabeth ; Turpin, François ; Levelut, Anne-Marie

In: Helvetica Chimica Acta, 1998, vol. 81, no. 11, p. 2072-2077

The synthesis and liquid-crystalline properties of tetracatenar covalent and H-bonded bis-ferrocene derivatives 1 and 2, respectively, are reported. Both compounds gave rise to enantiotropic columnar liquid-crystalline behavior with a hexagonal molecular organization. To explore the possibility to obtain also calamitic liquid-crystalline phases from H-bonded ferrocene-containing liquid crystals,...