Synthesis and basic properties of tetra-tert-butyltetrabenzo-5,10,15-triazaporphyrin
作者:Yu. B. Ivanova、Yu. I. Churakhina、A. S. Semeikin、N. Zh. Mamardashvili
DOI:10.1134/s1070363209040252
日期:2009.4
2(2),7(2),12(2),17(2)-Tetra-tert-butyltetrabenzo-5,10,15-triazaporphyrine was synthesized, and its basic properties were studied by spectrophotometric titration. It was found that in the system ethanol-sulfuric acid nitrogen atoms in the tetrapyrrole macroring undergo protonation in three steps. The corresponding ionization constants and concentration ranges for mono-, di-, and tricationic forms of the examined compound were determined.