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
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