FERROELECTRIC LIQUID CRYSTAL COMPOSITIONS CONTAINING CHIRAL HALOALKOXY TAIL UNITS

摘要

The subject application discloses a chiral nonracemic composition of the general formula: R1-Ar-O-CH2-C*HX-C*HY- CH2-O-R2, wherein R1 is a tail group of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens ; and R2 is one to ten carbon atoms. The - O-CH2-C*HX-C*HY-CH2-O- segment com- prises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S;3S-dihalo R2 is the distal segment of the chiral tail.