Home

Citation: LI Juan-Li, AN Zhong-Wei. Syntheses and Thermo Analyses of Lateral Single Fluorine Substituted 4,4'-Bis(trans-4-n-alkylcyclohexyl) biphenyl Liquid Crystals[J]. Chinese Journal of Applied Chemistry, ;2007, 24(2): 200-205. shu

Syntheses and Thermo Analyses of Lateral Single Fluorine Substituted 4,4'-Bis(trans-4-n-alkylcyclohexyl) biphenyl Liquid Crystals

LI Juan-Li ,
AN Zhong-Wei ^,

1.
Optical and Electrical Material Center, Xi'an Modern Chemistry Research Institute, Xi'an 710065

Corresponding author: AN Zhong-Wei,
Received Date: 16 March 2006
Available Online: 30 May 2006

Nine compounds of lateral single fluorine substituted 4,4'-bis(trans-4-n-alkylcyclohexyl) biphenyl liquid crystals were synthesized via Suzuki coupling reactions with 2-fluoro-4-(trans-4-alkylcyclohexyl) phenyl boric acid and(trans-4-n-alkylcyclohexyl)-bromo benzene as reactants.The purity of the products was more than 99.9%,and the yields were 28.0%~88.9%.Their structures were confirmed by means of~¹H NMR, IR and MS.The phase transition behavior was studied through differential scanning calorimetry(DSC) and polarizing optical microscopy(POM).The results show that all the compounds possess a wide temperature range of mesophases,the narrowest temperature range of mesophases is 138℃and the widest is 201℃.The smectic phase temperature range was dramatically reduced or disappeared,and the nematic phase temperature range was enlarged because of the introduction of lateral single fluorine.
- Suzuki coupling reaction,
- synthesis,
- liquid crystal,
- phase transition behavior
1. [1]
  Jing WU , Puzhen HUI , Huilin ZHENG , Pingchuan YUAN , Chunfei WANG , Hui WANG , Xiaoxia GU . Synthesis, crystal structures, and antitumor activities of transition metal complexes incorporating a naphthol-aldehyde Schiff base ligand. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2422-2428. doi: 10.11862/CJIC.20240278
2. [2]
  Xinting XIONG , Zhiqiang XIONG , Panlei XIAO , Xuliang NIE , Xiuying SONG , Xiuguang YI . Synthesis, crystal structures, Hirshfeld surface analysis, and antifungal activity of two complexes Na(Ⅰ)/Cd(Ⅱ) assembled by 5-bromo-2-hydroxybenzoic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1661-1670. doi: 10.11862/CJIC.20240145
3. [3]
  Jiaming Xu , Yu Xiang , Weisheng Lin , Zhiwei Miao . Research Progress in the Synthesis of Cyclic Organic Compounds Using Bimetallic Relay Catalytic Strategies. University Chemistry, 2024, 39(3): 239-257. doi: 10.3866/PKU.DXHX202309093
4. [4]
  Yukai Jiang , Yihan Wang , Yunkai Zhang , Yunping Wei , Ying Ma , Na Du . Characterization and Phase Diagram of Surfactant Lyotropic Liquid Crystal. University Chemistry, 2024, 39(4): 114-118. doi: 10.3866/PKU.DXHX202309033
5. [5]
  Feiya Cao , Qixin Wang , Pu Li , Zhirong Xing , Ziyu Song , Heng Zhang , Zhibin Zhou , Wenfang Feng . Magnesium-Ion Conducting Electrolyte Based on Grignard Reaction: Synthesis and Properties. University Chemistry, 2024, 39(3): 359-368. doi: 10.3866/PKU.DXHX202308094
6. [6]
  Renxiao Liang , Zhe Zhong , Zhangling Jin , Lijuan Shi , Yixia Jia . A Palladium/Chiral Phosphoric Acid Relay Catalysis for the One-Pot Three-Step Synthesis of Chiral Tetrahydroquinoline. University Chemistry, 2024, 39(5): 209-217. doi: 10.3866/PKU.DXHX202311024
7. [7]
  Tianlong Zhang , Rongling Zhang , Hongsheng Tang , Yan Li , Hua Li . Online Monitoring and Mechanistic Analysis of 3,5-diamino-1,2,4-triazole (DAT) Synthesis via Raman Spectroscopy: A Recommendation for a Comprehensive Instrumental Analysis Experiment. University Chemistry, 2024, 39(6): 303-311. doi: 10.3866/PKU.DXHX202312006
8. [8]
  Yinuo Wang , Siran Wang , Yilong Zhao , Dazhen Xu . Selective Synthesis of Diarylmethyl Anilines and Triarylmethanes via Multicomponent Reactions: Introduce a Comprehensive Experiment of Organic Chemistry. University Chemistry, 2024, 39(8): 324-330. doi: 10.3866/PKU.DXHX202401063
9. [9]
  Zizheng LU , Wanyi SU , Qin SHI , Honghui PAN , Chuanqi ZHAO , Chengfeng HUANG , Jinguo PENG . Surface state behavior of W doped BiVO₄ photoanode for ciprofloxacin degradation. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 591-600. doi: 10.11862/CJIC.20230225
10. [10]
  Fang Niu , Rong Li , Qiaolan Zhang . Analysis of Gas-Solid Adsorption Behavior in Resistive Gas Sensing Process. University Chemistry, 2024, 39(8): 142-148. doi: 10.3866/PKU.DXHX202311102
11. [11]
  Limei CHEN , Mengfei ZHAO , Lin CHEN , Ding LI , Wei LI , Weiye HAN , Hongbin WANG . Preparation and performance of paraffin/alkali modified diatomite/expanded graphite composite phase change thermal storage material. Chinese Journal of Inorganic Chemistry, 2024, 40(3): 533-543. doi: 10.11862/CJIC.20230312
12. [12]
  Minna Ma , Yujin Ouyang , Yuan Wu , Mingwei Yuan , Lijuan Yang . Green Synthesis of Medical Chemiluminescence Reagents by Photocatalytic Oxidation. University Chemistry, 2024, 39(5): 134-143. doi: 10.3866/PKU.DXHX202310093
13. [13]
  Qingying Gao , Tao Luo , Jianyuan Su , Chaofan Yu , Jiazhu Li , Bingfei Yan , Wenzuo Li , Zhen Zhang , Yi Liu . Refinement and Expansion of the Classic Cinnamic Acid Synthesis Experiment. University Chemistry, 2024, 39(5): 243-250. doi: 10.3866/PKU.DXHX202311074
14. [14]
  Wenjun Zheng . Application in Inorganic Synthesis of Ionic Liquids. University Chemistry, 2024, 39(8): 163-168. doi: 10.3866/PKU.DXHX202401020
15. [15]
  Hongyan Chen , Yajun Hou , Shui Hu , Zhuoxun Wei , Fang Zhu , Chengyong Su . Construction of Synthetic Chemistry Experiment of the Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 58-63. doi: 10.12461/PKU.DXHX202409109
16. [16]
  Cunming Yu , Dongliang Tian , Jing Chen , Qinglin Yang , Kesong Liu , Lei Jiang . Chemistry “101 Program” Synthetic Chemistry Experiment Course Construction: Synthesis and Properties of Bioinspired Superhydrophobic Functional Materials. University Chemistry, 2024, 39(10): 101-106. doi: 10.12461/PKU.DXHX202408008
17. [17]
  Jiaojiao Yu , Bo Sun , Na Li , Cong Wen , Wei Li . Improvement of Classical Organic Experiment Based on the “Reverse-Step Optimization Method”: Taking Synthesis of Ethyl Acetate as an Example. University Chemistry, 2025, 40(3): 333-341. doi: 10.12461/PKU.DXHX202405177
18. [18]
  Yuan Zheng , Quan Lan , Zhenggen Zha , Lingling Li , Jun Jiang , Pingping Zhu . Teaching Reform of Organic Synthesis Experiments by Introducing Reverse Thinking and Design Concepts: Taking the Synthesis of Cinnamic Acid Based on Retrosynthetic Analysis as an Example. University Chemistry, 2024, 39(6): 207-213. doi: 10.3866/PKU.DXHX202310065
19. [19]
  Li Jiang , Changzheng Chen , Yang Su , Hao Song , Yanmao Dong , Yan Yuan , Li Li . Electrochemical Synthesis of Polyaniline and Its Anticorrosive Application: Improvement and Innovative Design of the “Chemical Synthesis of Polyaniline” Experiment. University Chemistry, 2024, 39(3): 336-344. doi: 10.3866/PKU.DXHX202309002
20. [20]
  Yinwu Su , Xuanwen Zheng , Jianghui Du , Boda Li , Tao Wang , Zhiyan Huang . Green Synthesis of 1,3-Dibromoacetone Using Halogen Exchange Method: Recommending a Basic Organic Synthesis Teaching Experiment. University Chemistry, 2024, 39(5): 307-314. doi: 10.3866/PKU.DXHX202311092

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(301)
HTML views(66)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return