合成了稀土配合物[Sm(m-BrBA)3phen]2·2H2O(m-BrBA,间溴苯甲酸;phen,邻菲罗啉).用差示扫描量热(DSC)技术研究了该配合物脱水反应的动力学方程和动力学参数.实验数据用双等双步法处理,得到脱水反应的动力学方程为dα/dt=Aexp(-E/RT)2(1-α)[-ln(1-α)]1/2.表观活化能E为237.26 kJ·mol-1,指前因子A为4.40×1018/min-1,分别获得了脱水过程的热力学参数ΔH≠, ΔG≠和ΔS≠的值.
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