Acta Chimica Sinica ›› 2001, Vol. 59 ›› Issue (4): 466-471. Previous Articles     Next Articles

Original Articles

低相变温度卟啉液晶的合成与表征

柳巍;师同顺   

  1. 吉林大学化学系.长春(130023)
  • 出版日期:2001-04-15 发布日期:2001-04-15

Synthesis and characterization of liquid crystal porphyrin compounds with lower phase change temperature

Liu Wei;Shi Tongshun   

  1. Jilin Univ, Dept Chem.Changchun(130023)
  • Online:2001-04-15 Published:2001-04-15

Four series of tetra(4-n-alkanoyloxyphenyl) porphyrins(8 kinds) have been synthesized. The structures of the compounds are characterized by elemental analysis. UV-vis spectrum, FT-IR photoacoustic spectrum, 1^H NMR and MS. The domains of stability and the structure of the liquid crystalline phases are determined by optical microscopy and differential scanning calorimerials (DSC). These compounds melt to isotropic liquids well below their decomposition points and exhibit colunmar discotic mesophase, lower phase transition temperature. The lowest is TLPPZn at - 36.4℃.

Key words: PORPHYRIN, LIQUID CRYSTAL, PHASE TRANSFORMATION, ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, PROTON MAGNETIC RESONANCE SPECTROMETRY, DIFFERENTIAL SCANNING CALORIMETRY

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