Liquid crystals carrying stereodefined vicinal difluoro- and trifluoro- alkyl motifs.
The synthesis of the stereospecifically fluorinated difluoro- and trifluoro- rac-3 and rac-4 is described where the fluorine atoms are positioned adjacent/vicinal to each other and the physical characteristics of these candidate liquid crystals including negative dielectric anisotropy are measured and rationalised.
School of Chemistry and Centre for Biomolecular Sciences, University of St Andrews, North Haugh, St Andrews, Fife, UK KY16 9ST.
Marcello
M
Nicoletti
Matthias
M
Bremer
Peer
P
Kirsch
David
D
O'Hagan
D000478:Alkylation; D016880:Anisotropy; D005461:Fluorine / Q000737:chemistry*; D005740:Gases / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D011744:Pyrimidinones / Q000737:chemistry*; D013237:Stereoisomerism
D005740:Gases; D005960:Glucosides; D011744:Pyrimidinones; D005461:Fluorine; C009661:vicine