申请人:Sekine Chizu
公开号:US20080139824A1
公开(公告)日:2008-06-12
There are disclosed novel compounds, liquid crystal compositions, polymers, optically anisotropic products, and optical or liquid or liquid crystal elements that have large refractive index anisotropy, mix easily with other liquid crystals, have advantageous stability against light, and exhibit absorption at practically short wavelength in the ultraviolet region. The compounds are represented by the formula (1) and have a phenylacetylene structure, wherein difference ΔE in energy of HOMO of parts (1-1), (1-2) and (1-3) calculated by the method of molecular orbitals is not less than 0.3 electronvolt, and the polarizability anisotropy Δα of a molecule represented by the formula (1) calculated in the same way is not lower than 500 A.U.:
(A
1
to A
4
: H, F, alkyl or alkoxy group of C1 to C10 optionally substituted with F; P
1
, P
2
; structure fulfilling the conditions of HOMO energy and polarizability).
本发明公开了新型化合物、液晶组合物、聚合物、光学各向异性产品和具有大折射率各向异性、易于与其他液晶混合、对光稳定性有优势、在紫外区域实际短波长处表现出吸收的光学或液晶元素。这些化合物由公式(1)表示,具有苯乙炔结构,其中通过分子轨道法计算的部分(1-1)、(1-2)和(1-3)的HOMO能级差ΔE不小于0.3电子伏,公式(1)所代表的分子的极化率各向异性Δα在同样的方法下计算不低于500 A.U.:(A1至A4:C1至C10的氢、氟、烷基或烷氧基,可选地取代为氟;P1、P2:符合HOMO能量和极化率条件的结构)。