甘氨酸与醋酸铜固相配位反应的热化学研究

Studies on Thermochemistry of Solid State Coordination Reaction of Glycine with Cupric Acetate

用自行研制的具有恒定温度环境的反应热量计，以２ｍｏｌ·Ｌ－１ＨＣＩ溶液为量热溶剂，测得甘氨酸与醋酸铜固相配位反应焓c＝３０．０８６ｋＪ·ｍｏｌ－１，从而计算了配合物ｔｒａｎｓ－Ｃｕ（Ｇｌｙ）２·Ｈ２Ｏ的标准生成焓△fHΦm＝１２５２．２６３ｋＪ·ｍｏｌ－１．

The reaction enthalpy of solid-solid coordination reaction of HGly with cupric acetate is determined by solution calorimetry in an isoperibel reaction calorimeter. The calorimetric solvent is the solution of hydrochloric acid(2 mol. L^-1). According to the results, the values△_rH~Φ_m =30.086 kJ·mol-1 and△_fH~Φ_m (trans-Cu(Gly)_2· H_2O, S) =-1 252.263 kJ· mol^-1 are recommended.