【摘要】 用pH法测定了PnAO的质子化常数及Cu(Ⅱ)-PnAO、Cu(Ⅱ)—5-R-Phen—PnAO配合物的稳定常数.用直接量热法测定了PnAO的质子化热及Cu(Ⅱ)二元、三元配合物的生成热.Cu(Ⅱ)三元配合物体系与5-R-Phen的质子化体系之间存在线性热力学函数关系.并对取代基效应作了解释.更多还原

【Abstract】 The pH titration method was used for measuring the protonation constants of PnAO, and the stability constants of binary and ternary complexes. The heats of protonation and complex formation were measured by calorimetry. The results showed that some linear free energy relationships (LEER) exists between the protonation constants of RPhen and the stability constants of Cu(Ⅱ) -PnAO-RPhen ternary system. We also found the existence of linear enthalpy relanationships (LER) in ternary system. The substituent effect was discussed.更多还原