【摘要】 用pH滴定法研究了在0.1MNaClO₄水溶液中（30.0±0.1℃）Cu（II）-邻羟基苄胺（HBA）和Cu（II）-L（L为乙二胺En,联呲啶DiPY,氨基乙酸Gly,丙二酸Mal,草酸Ox）与HBA的配位反应.测得了Cu（II）-HBA配合物稳定常数（logK₁=9.46,logK₂=7.21）和配位反应平衡常数logk₂[En（7.88）,Dipy（9.09）,Gly（8.23）,Mal（8.48）,Ox（8.24）].计算了△logK[△logK=logk₂-logK₁（HBA）]和歧化反应的平衡常数logX.所有混合型配合物的稳定性都比单纯配位统计效应所预期的稳定性要大（即logX>0.6）.讨论了pH滴定曲线和几种影响混合型配合物稳定性的因素.更多还原

【Abstract】 The complex reaction of Cu （II）-o-hydroxybenzylamine （HBA） and the complex reactions of Cu（II）-L（L=ethylenediamine, 2, 2’-dipyridyl, glycine anion, malonic acid dianion, oxalic acid dianion） with HBA were studied pH-metrically in aqueous solution at 30.0±0.1℃ in the presence of 0.1M sodium perchlorate. The stability constants of Cu（II）-HBA （logK₁=9.46, logK₂=7.21） and the equilibrium constants of complex reaction for CuL+HBA→CuL（HBA） [log k₂, L=En（7.88）, Dipy（9.09）, Gly（8.23）, Mal（8.48）, Ox（8.24）] were determined. The differences, △logK=logk₂-logK₁（HBA）, and the constants log X were calculated. All of these mixed-ligand complexes are more stable than one would expect for purely statistical reasons （log X=0.6）. The pH titration curves and the effects of various factors on the stability of mixed-ligand complexes were discussed.更多还原