| abstract |
The present invention provides new phenylacetylene compounds, liquid crystal compositions having a large refractive index anisotropy (DELTAn), and liquid crystal elements made therewith. The liquid crystal composition contains at least one compound of the formula (3A) and at least one compound selected from compounds of the formulas (3B) to (3C), where A · 1 · to A · 12 ·: alkyl radical, optionally substituted by F; R · 1 ·, R · 2 ·: H, F; A * 13 * to A * 24 *: H, F; m: 0 or 1; Rings A to D: 1,4-phenylene, 1,4-cyclohexylene; R · 5 ·, R · 6 ·: H, F; Z · 1 · to Z · 3 ·: -COO-, -OCO-; b to d: 0 or 1 with b + c + d> = 1; B · 1 · to B · 12 ·: alkyl or alkoxy; R7, R8: H, F: DOLLAR F1 |