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237.26kJ.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。 The rare earth complex [Sm (m-BrBA) 3phen] 2.2H2O (m-BrBA, m-bromobenzoic acid; phen, phenanthroline) was synthesized. The kinetic equation and kinetic parameters of dehydration reaction of the complex were studied by differential scanning calorimetry (DSC). The kinetic equation of the dehydration reaction is: dα / dt = Aexp (-E / RT) 2 (1 -α) [- ln (1-α)] 1/2. The apparent activation energy E is 237.26 kJ · mol-1 and the pre-exponential factor A is 4.40 × 1018 / min-1. The thermodynamic parameters ΔH ≠, ΔG ≠ and ΔS ≠ are obtained respectively.