Interaction of Chelates with Macrocyclic Ligands.Porphyrins and Hg(II)Chelate Salts

摘要

The complex formation of different porphyrins(5,10,15,20-tetraphenylporphine(I),N-methyl-5,10,15,20-tetraphenylporphine(II),2,3,7,8,12,13,17,18-octaphenyltetraazaporphyrin(III),and tert-butylphthalocyanine(IV))with mercury(II)valinate(Hg(Val)_2)in DMSO was studied.The rates of reactions of macrocycles I,II,and IV with mercury(II)valinate were found to be higher than those with valinates of other d metals,and the complex formation rates of III with Hg(Val)_2 were comparable with these characteristics for other valinates.Mechanisms for binding of different porphyrins by Hg(II)chelate salts were proposed.