Novel high birefringence bistolane liquid crystals with lateral   fluorosubstituent

doi:10.1080/02678292.2012.725871

CORC > 北京大学 > 工学院

	Novel high birefringence bistolane liquid crystals with lateral fluorosubstituent
	Zhang, Yong-ming ; Wang, Dong ; Miao, Zong-cheng ; Jin, Shao-kui ; Yang, Huai
刊名	liquid crystals
	2012
关键词	high birefringence bistolane liquid crystals lateral fluorosubstituent wide temperature range DERIVATIVES MONOMERS
DOI	10.1080/02678292.2012.725871
英文摘要	Twelve compounds based on lateral fluorinated bistolane moieties with cyano or trifluoromethyl terminal groups were synthesised with Hagihara-Sonogashira cross-coupling reaction. The molecular structures of the compounds were confirmed by Fourier transform infrared, H-1-nuclear magnetic resonance and mass spectrometry. The transition temperatures, optical textures and optical anisotropies were determined by differential scanning calorimetry, polarizing optical microscopy and ultraviolet microscopy. The effects of the terminal substituents and lateral fluorosubstituent group on their physical properties were investigated and discussed. The compounds with lateral double fluorosubstituent and cyano terminal group exhibited nematogenic texture, while other compounds showed smectic phase. All the compounds exhibited wide liquid crystal temperature ranges and high clearing points. Interestingly, the compounds have the high birefringence in the range of between 0.480 and 0.633.; Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary; SCI(E); 0; ARTICLE; 11; 1330-1339; 39
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/235885]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Yong-ming,Wang, Dong,Miao, Zong-cheng,et al. Novel high birefringence bistolane liquid crystals with lateral fluorosubstituent[J]. liquid crystals,2012.
APA	Zhang, Yong-ming,Wang, Dong,Miao, Zong-cheng,Jin, Shao-kui,&Yang, Huai.(2012).Novel high birefringence bistolane liquid crystals with lateral fluorosubstituent.liquid crystals.
MLA	Zhang, Yong-ming,et al."Novel high birefringence bistolane liquid crystals with lateral fluorosubstituent".liquid crystals (2012).