Complexation Properties of Octa(4-bromophenyl)tetraazaporphyrin and Its Magnesium(II) Complex with Salts of d-Metals in DMF

Metal exchange reaction between Mg(II) and Cd(II) octa(4-bromophenyl)tetraazaporphyrinates with manganese(II) chloride in dimethylformamide

“…Magnesium(II) octa(4-bromophenyl)tetraazaporphyrinate was prepared via cyclization of di(4-bromophenyl)maleindinitrile with magnesium metal [6].…”

Synthesis, Structure, and Spectral-Luminescent Properties of Peripherally Fluorinated Mg(II) and Zn(II) Octaphenyltetraazaporphyrins

“…The specific chemical behavior of substituted metalloporphyrins is mainly caused by the presence of a complex branched macrocycle and strong conjugation of the π–electron system [ 12 ]. The method of template cyclotetramerization of porphyrin molecule fragments with a metal or its salt has been used to synthesize ionic and covalent complexes based on porphyrins [ 13 , 14 , 15 ] and tetraazaporphyrins [ 16 , 17 , 18 , 19 , 20 ]. In this work, cyclization of di-(2,6-difluorophenyl)maleindinitrile with acetates of the respective metals in boiling ethylene glycol was applied to synthesize and identify Mg(II)- and Zn(II)-octa-(2,6-difluorophenyl)tetraazaporphyrin complexes.…”

“…In this work, cyclization of di-(2,6-difluorophenyl)maleindinitrile with acetates of the respective metals in boiling ethylene glycol was applied to synthesize and identify Mg(II)- and Zn(II)-octa-(2,6-difluorophenyl)tetraazaporphyrin complexes. The choice of the complexes was prompted by the fact that they are quite easily formed through cyclization of the respective salts with nitriles [ 16 , 18 , 19 , 20 ] and 3-carboxymethylphthalimidines [ 13 , 14 ] (i.e., they are accessible compounds). Additionally, they are also quite interesting because, being rather labile, these complexes are used in metal exchange reactions to prepare more inaccessible complexes of aza-porphyrins with heavy metals and variable valence metals.…”