后酒子太学 Shihezi University 逐级络合物ML,在溶 逐级稳定常数K 液中是分级形成的 逐级累积稳定常数B [ML] M+L=ML [ML] [M]IL] B-K- MIL] ML+L=ML2 ML] [ML] MLIL] 2=K= [MILP ●●● ML] ML+L=MLn K ML] [ML-IIL] B-KGK- [MIILI 【表示相邻络合 B表示络合物与 物之间的关系 配体之间的关系逐级稳定常数 Kii ● ● ● ● ● ● ● ● ● K 表示相邻络合 物之间的关系 M + L = ML M + L = ML M + L = ML M + L = ML M + L = ML M + L = ML M + L = ML M + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML22 逐级累积稳定常数 逐级累积稳定常数 β β 表示络合物与 配体之间的关系 [ML] [M][L] K11= [ML22] [ML][L] [ML][L] [ML][L] [ML][L] [ML][L] [ML][L] [ML][L] [ML][L] K22= [MLnn] [MLn-1 n-1][L] Knn = [ML] [M][L] β11=K11= [ML22] [M][L] 22 β22=K11K22= [MLnn] [M][L]nn βnn =K11K2 2···Knn = 逐级络合物MLnn在溶 液中是分级形成的 液中是分级形成的 ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = ML ML + L = MLnn