Linear free energy relationships between stability of complex and basicity of ligand Ⅶ. The copper(Ⅱ)-heteronuclear aromatic base-aminoacid temary systems
Linear free energy relationships between stability of complex and basicity of ligand Ⅶ. The copper(Ⅱ)-heteronuclear aromatic base-aminoacid temary systems作者机构:Department of Chemistry Nankai University Tianjin
出 版 物:《Chinese Journal of Chemistry》 (中国化学(英文版))
年 卷 期:1986年第4卷第3期
页 面:189-195页
主 题:heteronuclear aromatic base-aminoacid temary systems Linear free energy relationships between stability of complex and basicity of ligand The copper free base
摘 要:The formation constants of ternary mixed ligand complex compounds formed fromCu(Ⅱ)-2,2 -bipyridyl (bipy) with N-(para-substituted phenyl) glycines (pRPhG), Cu(Ⅱ)-1, 10-phenan-throline (phen) with N-(meta-substituted phenyl) glycines (mRPhG), Cu(Ⅱ)--bipy/phen with someα-aminoacids (αA) have been determined by pH method at 25℃ in the presence of 0.10 M *** was found that linear free energy relationships do exist between the stability of ternary complexcompounds and the base strengths of the ligands in all four ternary systems investigated. The stabi-lity of the ternary complex compounds was discussed in terms of ΔlogKMand log X values. It wasfound again that linear relationships exist between Δ log KM, log X and p K2in the Cu (Ⅱ)-phen-mRPhGternary system.