Phenylacetylene compounds are disclosed which are expected to exhibit high refractive index anisotropy, easy to mix with other liquid crystal compounds, has advantageous stability against light, and may be used as a material for producing various films and the like. The compounds are represented by the formula (1):
1
wherein A
1
to A
12
: H, F, etc.; B
1
, B
2
: H, CH
3
; p, q, r, s , t: 0 or 1, provided that when q=0, at least one of A
2
and A
4
to A
10
stands for a C
1
to C
10
alkyl or alkoxy group optionally substituted with at least one F; m, n: an integer of 0 to 14, provided that when s=1, n is not 0, and when t=1, m is not 0; W: —CH
2
CH
2
—, —C≡C—.
公开了
苯乙炔化合物,预计表现出高折射率各向异性,易于与其他液晶化合物混合,对光稳定性有优势,可用作制造各种薄膜等材料。该化合物由公式(1)表示:其中A1到
A12:H,F等;B1,B2:H,
CH3;p,q,r,s,t:0或1,但当q=0时,至少有A2和A4到A10中的一个表示为C1到C10烷基或烷氧基,可选择地被至少一个F取代;m,n:0至14的整数,但当s=1时,n不为0,当t=1时,m不为0;W:—CH2CH2—,—C≡C—。