Binary System Between Chlorobenzene and Hexafluorobenzene: Phase Diagram and Molecular Complex
Molecular crystals and liquid crystals science technology Section A, Molecular crystals and liquid crystals/Molecular crystals and liquid crystals science and technology Section A, Molecular crystals and liquid crystals(1997)
摘要
Equilibrium phase diagram of the chlorobenzene-hexafluorobenzene binary system is experimentally determined by differential scanning calorimetry and X-ray diffraction analyses. This diagram is of the double eutectic type with a 1:1 crystalline molecular complex. The optimization of the complex thermodynamic quantities (melting temperature, melting enthalpy and first order polymorphic transition temperature) is carried out from the experimental data. The positive excess enthalpy of the melt resulting from repulsive interactions between C6H5Cl and C6F6 molecules is related to the low stability of the complex lattice.
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关键词
molecular complexes,differential scanning calorimetry,X-ray diffraction,thermal analysis
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