Liquid crystal naphtalene 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; A, Z and Z′ are as follows: 1) A is Pyr> and (a) Z is - or # and Z′ is O, or (b) Z is - and Z′ is COO; 2) if A is Pym>, (a) Z is - and Z′ is O, or (b) Z is O and Z′ is -, O or #; 3) A is FPhF and (a) Z is - or O and Z′ is -, O or COO, (b) Z is OCO and Z′ is - or O, or (c) Z is # and Z′ is O; 4) A is PhF and (a) Z is - or # and Z′ is O, (b) Z is O and Z′ is -, or (c) Z is - and Z′ is COO; 5) A is FPh and (a) Z is O and Z′ is-, (b) Z is -, O, # or OCO and Z′ is O, or (c) Z is O and Z′ is COO; 6) A is
液晶萘化合物的化学式如下所示:R-Z-A-NAP-Z′-R′。在这个化学式中,R是含有1到18个碳原子的烷基基团;R′是含有1到21个碳原子的烷基基团;NAP代表2,6-萘基团;A、Z和Z′的具体定义如下:
1)如果A是Pyr,(a) Z是-或#,Z′是O;或者(b) Z是-,Z′是COO;
2)如果A是Pym,(a) Z是-,Z′是O;或者(b) Z是O,Z′是-、O或#;
3)如果A是FPhF,(a) Z是-或O,Z′是-、O或COO;(b) Z是OCO,Z′是-或O;或者(c) Z是#,Z′是O;
4)如果A是PhF,(a) Z是-或#,Z′是O;(b) Z是O,Z′是-;或者(c) Z是-,Z′是COO;
5)如果A是FPh,(a) Z是O,Z′是-;(b) Z是-、O、#或OCO,Z′是O;或者(c) Z是O,Z′是COO;
6)如果A是
Metallomesogens based on platinum(ii) complexes: synthesis, luminescence and polarized emission
作者:Yafei Wang、Yu Liu、Jian Luo、Hongrui Qi、Xiaoshuang Li、Meijun Nin、Ming Liu、Danyan Shi、Weiguo Zhu、Yong Cao
DOI:10.1039/c0dt01515f
日期:——
Two series of heteroleptic cyclometalated platinum(II) complexes [(CnOppy)Pt(acac) and (CnOFppy)Pt(acac)] have been prepared. Their liquid-crystal and optophysical properties were studied, in which CnOppy is 2-(4-alkoxyphenyl)-5-(alkoxymethyl)pyridine and CnOFppy is 2-(3-fluoro-4-alkoxyphenyl)-5-(alkoxymethyl)pyridine. Only the heteroleptic cyclometalated platinum(II) complexes (n = 12 and 16) exhibited enantiotropic mesophase transitions with smectic (Sm) structure. Intense polarized luminescence with a maximum peak at 532 nm and a polarization ratio as high as 10.5 were obtained in an aligned polyimide film under opto-excitation at room temperature. This research work provides a simple approach to realize high-efficiency polarized emission by heteroleptic cyclometalated platinum(II) complexes.
已制备两系列杂配位环金属化铂(II)络合物[(CnOppy)Pt(acac) 和 (CnOFppy)Pt(acac)]。研究了它们的液晶和光物理性质,其中CnOppy是2-(4-烷氧基苯基)-5-(烷氧基甲基)吡啶,CnOFppy是2-(3-氟-4-烷氧基苯基)-5-(烷氧基甲基)吡啶。仅有杂配位环金属化铂(II)络合物(n = 12和16)表现出具层状(Sm)结构的外消旋相变。在常温下,在对齐的聚酰亚胺薄膜中,经过光激发获得了最大峰值为532 nm且极化比高达10.5的强极化发光。该研究工作提供了一种通过杂配位环金属化铂(II)络合物实现高效率极化发射的简单方法。
Liquid crystalline organic semiconductor material and organic semiconductor device using same
申请人:Sasada Yasuyuki
公开号:US20080058544A1
公开(公告)日:2008-03-06
The present invention provides a novel organic semiconductor material that affords efficient charge transport, under a wider range of conditions, by increasing the temperature stability and expanding the temperature range of the organic semiconductor material. In an organic semiconductor material comprising a liquid crystalline compound having substituents on the periphery of a rigid plate-like central structure, the substituents have a fluorinated phenylene group, and columns in which the molecules of the compound are accumulated in a stack are aligned hexagonally.
本发明提供了一种新型的有机半导体材料,通过提高温度稳定性和扩大有机半导体材料的温度范围,实现了在更广泛的条件下高效的电荷传输。在包括具有刚性板状中心结构周围取代基的液晶化合物的有机半导体材料中,这些取代基具有氟取代苯基,并且该化合物的分子在柱状结构中呈六边形排列。
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