NOVEL SERIES OF ENAMINOKETONE LIQUID-CRYSTALS HAVING HEXATIC SMECTIC-B PHASE

Authors
PYZUK W KROWCZYNSKI A GORECKA E
Citation
W. Pyzuk et al., NOVEL SERIES OF ENAMINOKETONE LIQUID-CRYSTALS HAVING HEXATIC SMECTIC-B PHASE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 237, 1993, pp. 75
Citations number
14
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
237
Year of publication
1993
Database
ISI
SICI code
1058-725X(1993)237:<75:NSOELH>2.0.ZU;2-Z
Abstract
Several homologous series of liquid crystals having an aminoketone mes ogenic core (Liq. Cryst., 10, 593 (1991)), have been synthesized to de rive some new wide-temperature untilted smectics. Compounds belonging to three of six novel series have the hexatic smectic B phase between smectic A and enantiotropic crystal smectic B phases. Eleven of them e xhibit first order phase transition between smectic B phases, whereas for other compounds this phase transition is not detectable neither by DSC nor texture studies. Molecular modifications leading to further u ntitled hexatic compounds are suggested.