引用本文:
高恩君, 孙玉珍, 刘祁涛. 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[J]. 应用化学,
1998, 15(2): 94-96.
Citation: Gao Enjun, Sun Yuzhen, Liu Qitao. Studies of the Stabilities of Lead(Ⅱ) Mixed Ligand Complexes Containing Oxygen and Nitrogen as Coordination Atom Ⅳ. Lead(Ⅱ)-Nitrogen Heterocycles-Malonate System[J]. Chinese Journal of Applied Chemistry, 1998, 15(2): 94-96.
Citation: Gao Enjun, Sun Yuzhen, Liu Qitao. Studies of the Stabilities of Lead(Ⅱ) Mixed Ligand Complexes Containing Oxygen and Nitrogen as Coordination Atom Ⅳ. Lead(Ⅱ)-Nitrogen Heterocycles-Malonate System[J]. Chinese Journal of Applied Chemistry, 1998, 15(2): 94-96.
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
English
Studies of the Stabilities of Lead(Ⅱ) Mixed Ligand Complexes Containing Oxygen and Nitrogen as Coordination Atom Ⅳ. Lead(Ⅱ)-Nitrogen Heterocycles-Malonate System
Abstract:
The stability constants (logKPbLAPb) of the mixed ligand complexes, PbLA[L=2,2'-bipyridyl(bipy)、1,10-phenanthroline(phen)、5-nitro-1,10-phenanthroline(Nphe), A=malonic acid(mal2-)、benzyl malonic acid(pmal2-)、phenylethylmalonic acid radicals(pmal2-)] have been determined at 25 ℃ in 10% ethanol with ionic strength I=0.1(KNO3) mol/L by potentrometric titration. It is found that the △logK、logX values of the mixed ligand complexes are obviously higher than the △logK(s)、logX(s). The stability caused by the complexes has been discussed.
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Key words:
- bipyridyl
- / phenanthroline
- / nitrophenanthroline
- / phenylalkyl malonate
- / lead(Ⅱ) mixed complex
- / stability
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