Liquid crystal naphthalene compounds, represented by the following formula (1) are disclosed.
R-Z-A-#-NAP-Z′-R′ (1)
In the formula (1), R is an alkyl group containing 1 to 18 carbon atoms; R′ is an alkyl group containing 1 to 21 carbon atoms; NAP represents 2,6-naphthylene group;# represents C≡C;
A, Z and Z′ are as follows: 1) A is Pyr> and
(a) Z is - and Z′ is O or COO or (b) Z is OCO and Z′ is - or O; 2) A is FPhF and (a) Z is - or O and Z′ is -, O or COO or (b) Z is OCO and Z′ is - or O; 3) A is FPh and (a) Z is - and Z′ is O or COO, (b) Z is O and Z′ is -, O or COO or (c) Z is OCO and Z′ is - or O; 4) A is
揭示了液晶萘化合物,其表示为以下公式(1):R-Z-A-#-NAP-Z′-R′ (1)
在公式(1)中,R是含有1至18个碳原子的烷基基团;R′是含有1至21个碳原子的烷基基团;NAP代表2,6-萘基团;#代表C≡C;A,Z和Z′如下:
1)A是Pyr>,并且(a)Z是-,Z′是O或COO,或者(b)Z是OCO,Z′是-或O;
2)A是FPhF,并且(a)Z是-或O,Z′是-,O或COO,或者(b)Z是OCO,Z′是-或O;
3)A是FPh,并且(a)Z是-,Z′是O或COO,或者(b)Z是O,Z′是-,O或COO,或者(c)Z是OCO,Z′是-或O;
4)A是
Design of an extremely high birefringence nematic liquid crystal based on a dinaphthyl-diacetylene mesogen
作者:Yuki Arakawa、Shunpei Nakajima、Sungmin Kang、Masayuki Shigeta、Gen-ichi Konishi、Junji Watanabe
DOI:10.1039/c2jm32448b
日期:——
We designed dinaphthyl-diacetylene-based nematic liquid crystals with alkoxy tails (DNDA–OCm) and evaluated their birefringence (Δn). Actual measurements of pure target compounds showed that DNDA–OC2 had the highest value of 0.62 at 550 nm at Tc + 10 °C.
我们设计了基于二萘并二炔并含有烷氧基尾链(DNDA–OCm)的向列型液晶,并评估了它们的折射率各向异性(Δn)。对目标纯化合物的实际测量显示,在Tc + 10 °C和550 nm波长下,DNDA–OC2具有最高的Δn值,达到0.62。
Liquid crystal compounds and optically active compounds
申请人:SANYO CHEMICAL INDUSTRIES LTD.
公开号:EP0409634A2
公开(公告)日:1991-01-23
A compound usefull for liquid crystal component which is represented by the following formulas (1), (2), (3), or (4) ;
wherein R1 ,R2 ,R3 and R4 are C1 -1 8 alkyl groups; X1 and X2 is -, 0, S, -C≡C- or divarent groups such as COO, OCO, CH2 O or OCH2 ; Y1 is -CH2 CH2 - or -C ≡ C- ; A1 is 1,4-phenylene-group,
A2 , A3, A5 are such as 1,4-phenylene-group; A4 is
由以下公式(1)、(2)、(3)或(4)表示的可用于液晶成分的化合物;
其中 R1、R2、R3 和 R4 为 C1 -1 8 烷基;X1 和 X2 为-、0、S、-C≡C- 或亲和基,如 COO、OCO、CH2 O 或 OCH2;Y1 为-CH2 CH2 - 或-C≡C-;A1 为 1,4-亚苯基、
A2、A3、A5 为 1,4-亚苯基;A4 为 1,4-亚苯基;A6 为 1,4-亚苯基;A7 为 1,4-亚苯基。
Segregated assemblies in bridged electron-rich and electron-poor π-conjugated moieties
作者:Travis L. Benanti、Pranorm Saejueng、D. Venkataraman
DOI:10.1039/b610565c
日期:——
We report a general strategy for the spontaneous segregation of electron-rich and electron-poor Ï-conjugated moieties using mutually phobic aliphatic fluorocarbonâhydrocarbon interactions.
我们报道了一种利用相互排斥的脂肪族氟碳化合物与碳氢化合物之间的相互作用,实现富电子和缺电子的π共轭基团自发分离的通用策略。
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