Premium
Columnar Phases from Covalent and Hydrogen‐Bonded Liquid‐Crystalline Ferrocene Derivatives
Author(s) -
Deschenaux Robert,
Monnet Florence,
Serrano Elisabeth,
Turpin François,
Levelut AnneMarie
Publication year - 1998
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/(sici)1522-2675(19981111)81:11<2072::aid-hlca2072>3.0.co;2-6
Subject(s) - ferrocene , mesogen , chemistry , liquid crystal , covalent bond , crystallography , liquid crystalline , hydrogen bond , molecule , polymer chemistry , organic chemistry , phase (matter) , materials science , electrochemistry , optoelectronics , electrode
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, a rod‐shaped ferrocene mesogen 3 was synthesized, which gave rise to enantiotropic smectic C and smectic A phases. For the first time, a rational synthetic design at the ferrocene level led to ferrocene‐based liquid‐crystals with columnar behavior and to H‐bonded metallomesogens.