| abstract |
Stable to heat, light, etc., nematic phase over a wide temperature range, low viscosity, suitable, especially relatively small optical anisotropy, large elastic constant K 33 , and suitable, especially relatively large dielectric Provided is a liquid crystalline compound having a rate anisotropy. The compound is represented by Formula (1-1). For example, R 1 and R 2 are alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, or alkoxy having 1 to 9 carbons; ring A 1 and ring A 2 are 1,4-phenylene, 2 -Fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, or 3,5-difluoro-1,4-phenylene; m and n are 0, 1, 2, or 3, m + n Is 3. |