Effect of lateral substitution by chlorine and fluorine atoms of 4-alkyl-p-terphenyls on mesomorphic behaviour
作者:Marta Pytlarczyk、Ewelina Dmochowska、Michał Czerwiński、Jakub Herman
DOI:10.1016/j.molliq.2019.111379
日期:2019.10
The effect of halogen substitution on thermotropic liquid crystalline materials has a significant impact on many physical and chemical properties. Replacement of hydrogen atom by one of halogen can change and tune many important parameters such as dielectric anisotropy, viscosity, clearing and melting points, type and range of liquid crystallinephase and many others. Steric effect of halogen atoms
Monofluorinated terphenyl compound having alkenyl, liquid crystal composition, and liquid crystal display device
申请人:Chisso Corporation
公开号:US07749403B2
公开(公告)日:2010-07-06
A liquid crystal compound is provided that has stability to heat and an ultraviolet ray, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy, a nematic phase within a wide temperature range and favorable compatibility with other liquid crystal compounds, and a liquid crystal composition is also provided that has a particularly small viscosity. The liquid crystal compound is a compound represented by formula (1):
wherein in formula (1), R1 is hydrogen or alkyl having 1 to 5 carbons; one of X1 and X2 is hydrogen, and the other thereof is fluorine; and R2 is hydrogen or methyl.
MONOFLUORINATED TERPHENYL COMPOUND HAVING ALKENYL, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Satou Teizi
公开号:US20090206300A1
公开(公告)日:2009-08-20
A liquid crystal compound is provided that has stability to heat and an ultraviolet ray, a small viscosity, a suitable refractive index anisotropy, a suitable dielectric anisotropy, a nematic phase within a wide temperature range and favorable compatibility with other liquid crystal compounds, and a liquid crystal composition is also provided that has a particularly small viscosity. The liquid crystal compound is a compound represented by formula (1):
wherein in formula (1), R
1
is hydrogen or alkyl having 1 to 5 carbons; one of X
1
and X
2
is hydrogen, and the other thereof is fluorine; and R
2
is hydrogen or methyl.