25℃下,用pH电位滴定法研究了二元M(3,4Lu)2+和三元混配M(ATP)(3,4Lu)2-配合物(ATP4-=三磷酸腺苷,3,4Lu=3,4二甲基吡啶,M2+=Co2+,Ni2+,Cu2+或Zn2+)在水溶液中的稳定性,三元混配配合物相对于二元配合物的稳定性用M(3,4Lu)2++M(ATP)2-=M(ATP)(3,4Lu)2-+M2+的平衡常数ΔlogKM(=logKM(ATP)M(ATP)(3,4Lu)-logKMM(3,4Lu))表示,结果比统计值大,这可能主要归因于三元混配配合物分子内ATP4-与3,4Lu之间的σ-π协同效应及其芳环间的堆积作用,′HNMR谱研究确证了这种堆积作用的存在。 The effects of binary M (3,4Lu) 2+ and ternary mixed M (ATP) (3,4Lu) 2-complex (ATP4- = adenosine triphosphate, 3,4Lu = 3 , 4 lutidine, M2 + = Co2 +, Ni2 +, Cu2 + or Zn2 +) in aqueous solution. The stability of the ternary complex with respect to the binary complex was evaluated with M (3,4Lu) 2 ++ M The equilibrium constant ΔlogKM (= logKM (ATP) M (ATP) (3,4Lu) -logKMM (3,4Lu)) of the ATPase 2- = M (ATP) (3,4Lu) 2- + M2 + Which may be mainly attributed to the sigma-π synergistic effect between ATP4- and 3,4Lu in the ternary complex and the stacking effect between aromatic rings. The study of HNMR confirms this accumulation The role of existence.