氮、氧为配位原子的铅(Ⅱ)混合配合物的稳定性研究Ⅳ.铅(Ⅱ)-芳香氮碱-苯烷基丙二酸体系

Studies of the Stabilities of Lead(Ⅱ) Mixed Ligand Complexes Containing Oxygen and Nitrogen as Coordination Atom Ⅳ.Lead(Ⅱ)Nitrogen HeterocyclesMalonate System

氮、氧为配位原子的铅（Ⅱ）混合配合物的稳定性研究Ⅳ．铅（Ⅱ）－芳香氮碱－苯烷基丙二酸体系高恩君＊孙玉珍刘祁涛（沈阳化工学院配位化学研究室，分析测试中心沈阳１１００２１）（辽宁大学化学系沈阳）关键词联吡啶，邻菲咯啉，硝基邻菲咯啉，苯烷基丙二酸，铅（Ⅱ）...

The stability constants (logKPbPbLA) of the mixed ligand complexes, PbLA[L=2,2bipyridyl(bipy)、 1,10phenanthroline(phen)、 5nitro1,10phenanthroline(Nphe), A=malonic acid(mal2-)、 benzyl malonic acid(pmal2-)、 phenylethylmalonic acid radicals(pmal2-) ] have been determined at 25 ℃ in 10% ethanol with ionic strength I=01 (KNO3) mol/L by potentrometric titration. It is found that the ΔlogK、 logX values of the mixed ligand complexes are obviously higher than the ΔlogK(s)、 logX(s). The stability caused by the complexes has been discussed.