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有机化学
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有机化学 ›› 2007, Vol. 27 ›› Issue (06): 778-782. 上一篇    下一篇

研究论文

μ-氧-双[meso-四(对烷氧基苯基)卟啉合铝(III)]的合成、表征和液晶性能研究

刘捷频a，赵鸿斌*,a,b，徐勇军b，曹华a，陈科a
胡羽a，许兰兰a   

  1. (a湘潭大学化学学院 湘潭 411105)
    (b东莞理工学院化学生物工程系 东莞 523808)
  • 收稿日期:2006-09-06 修回日期:2007-03-27 发布日期:2007-05-21
  • 通讯作者: 赵鸿斌

Synthesis, Characterization and Liquid Cryatal Properties of μ-Oxo-bis[meso-tetrakis(4-alkoxyphenyl)porphyrin Aluminum(III)]

LIU Jie-Pina, ZHAO Hong-Bin*a, b, XU Yong-Junb, CAO Huaa, CHEN Kea,
HU Yua, XU Lan-Lana   

  1. (a College of Chemistry, Xiangtan University, Xiangtan 411105)
    (b Faculty of Chemical Biotechnology, Dongguan Universtiy of Technology, Dongguan 523808)
  • Received:2006-09-06 Revised:2007-03-27 Published:2007-05-21
  • Contact: ZHAO Hong-Bin

PDF

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合成了一系列未见文献报道的μ-氧-双[meso-四(对烷氧基苯基)卟啉合铝(Ⅲ)]配合物. 用UV-vis, 1H NMR, IR, MS和元素分析对各个化合物的结构进行了表征和确认, 发现在该系列配合物中两个卟啉分子通过Al—O—Al键形成二聚体. 用差示扫描量热仪(DSC)和偏光显微镜(PM)研究了其液晶性, 发现其中九个配合物具有液晶性, 多为升温单变液晶, 有一至两个中介相, 有确定的相转变温度、热焓和相变区间. 考察了取代基、金属离子和配合物的空间结构对液晶性能的影响.

关键词: 合成, 表征, 液晶性, 卟啉铝配合物

A series of novel μ-oxo-bis[meso-tetrakis(4-alkoxyphenyl)porphyrin aluminum(III)] were synthesized. Their molecular structures were characterized by UV-vis, 1H NMR, IR, MS spectra and elemental analysis, the results show that there two porphyrin molecules linked across Al—O—Al bond to form a dimer. Differential scanning calorimetry (DSC) and polarizing microscope (PM) were used to study their liquid properties. Among them, nine are found to exhibit liquid crystal (LC) properties, and most of them displayed as heating monotropic liquid crystals. There are one or two mesophases and certain phase transition temperature, ΔH and temperature range of liquid crystal (ΔT). The effects of alkoxy chains, metal ions of complexes and molecular space structure on liquid properties have been investigated.

Key words: synthesis, characterization, liquid crystal property, porphyrinaluminum complex