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
Synthesis and Mesomorphic Behavior of New<i>N</i>-Heterotolane Liquid Crystals Containing a Naphthyl-Pyridyl Framework
作者:Aloir A. Merlo、Ursula B. Vasconcelos
DOI:10.1055/s-2006-926384
日期:——
A homologous series of the new N-heterotolane was synthesized using two cross-coupling reactions mediated by copper and palladium/copper. The final compounds present a naphthyl-pyridyl framework connected by an acetylene group. The evaluation of physico-chemical properties is described. All the compounds exhibit the smectic A mesophase.
合成了一系列新的 N-杂芳烃同系物,使用了两种由铜和钯/铜介导的交叉偶联反应。最终化合物具有通过乙炔基连接的萘基-吡啶框架。描述了物理化学性质的评估。所有化合物均表现出倾斜A相介晶体。
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。
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