Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (01): 106 -109 .doi: 10.3866/PKU.WHXB19910118

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Study on Thermodynamic Characteristics of 4-Trifluorocoumarin Derivatives

Zhang Xing-Kang; Huang Wei-Jun; Tan Fu; Xu Guang-Zhi; Wu Zheng-Liang   

  1. National Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Academia Sinica, Beijing; Shanghai Institute of Optics and Fine Mechanics, Academia Sincia,China
  • Received:1989-08-11 Revised:1990-03-20 Published:1991-02-15
  • Contact: Zhang Xing-Kang

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Abstract:

This paper describes the DSC study of 4-trifluorocoumarin derivatives, C_(481), C_(485), C_(500) and C_(480), providing their DSC thermograms and thermodynamic parameters during the phase transitions of these compounds. Singlemelting peaks were observed on DSC thermogram respectively.Experimental results show the existence of certain correlations between the melting point, heat of fusion and molecular structure for this series of compounds.

Key words: Coumarin derivative, DSC(differential Scanning Calorimetry), Heat of fusion