| abstract |
The invention relates to terphenyl compounds having the general formula [1]:-n nwhere each of R 1 and R 2 is the same or different and is selected from the group consisting of:-nalkyl, alkyloxy, alkenyl, alkenyloxy, alkynyl, alkynyloxyn nwhere * indicates an asymmetric carbon atom, nprovided that at least one of R 1 and R 2 isn nand where each of R 3 and R 4 is the same or different and is an alkyl, alkenyl or alkynyl group;nand Z is independently selected from hydrogen and fluorine at each terphenyl carbon. Thencompounds are suitable for use in liquid crystal compositions. |