对甲基苯胺与溴化铜配位反应的热化学研究

Studies on Thermochemistry of Coordination Reaction of p-Toluidine with Cupric Bromide

用新型的具有恒定温度环境的反应热量计 ,以溶解量热法及根据配位反应所设计的热化学循环 ,得到了配位反应的反应焓ΔrHθm=- 2 6 .5 6 7kJ·mol-1,并计算出了配合物Cu(p tol) 2 Br2 的标准生成焓 推荐其值为 :ΔfHθm(Cu(p tol) 2 Br2 ,s) =- 2 34.2

The reaction enthalpy of coordination reaction of p toluidine with cupric bromide was determined to be Δ r H θ m=-26.567 kJ·mol -1 ,by solution calorimetry in a new model isoperibel reaction calorimeter.Based on the results obtained in this study and the literature values of enthalpy of formation for p toluidine and cupric bromide, the standard enthalpy of formation for Cu(p tol) 2Br 2 was determined to be Δ f H θ m(Cu(p tol) 2Br 2,s)=-234.215kJ·mol -1