Synthesis and spectral characteristics of (tetrabenzoporphyrinato)chloromanganese(III)

Abstract

A method is developed of synthesis of (tetrabenzoporphyrinato)chloromanganese(III) from tetrabenzoporphyrinatocadmium( II) (as a donor of the macrocyclic ligand) and the salts, manganese acetate MnAc2 and dichloromanganese MnCl2, in boiling dimethylformamide in the presence of atmosperic oxygen in 80% yield. It is found that under the conditions of the synthesis tetrabenzoporphyrinatomanganese(II) is formed which can be oxidized by the atmospheric oxygen to (tetrabenzoporphyrinato)chloromanganese(III). Absorption spectra in the visible and infrared regions, R f and the data of elemental analysis characterizing the resulting compound are given.