52587-70-9Relevant academic research and scientific papers
Effect of pyrrole bromo-substitution in tetraphenylporphine on the kinetics of complexation with zinc acetate in pyridine and acetic acid
Berezin,Karmanova,Gromova,Semeikin
, p. 834 - 838 (2002)
Rate constants of zinc acetate complexation with 2,7,12,17-tetrabromo-5,10, 15,20-tetraphenylporphine in toluene, pyridine, or acetic acid following the reaction H2TPP(β-Br)4 + Zn(Ac)2 → ZnTPP(β-Br)4 + 2HAc are determined at four temperatures in the interval of 298-328 K, and the activation energies and entropies are calculated. The effect of bromo-substitution in pyrrole fragments of a tetraphenylporphine molecule on the complexation kinetics and mechanism is discussed.
Study of extra coordination of bromo-substituted porphyrins to organic bases
Berezin,Karmanova,Gromova,Syrbu,Semeikin
, p. 608 - 612 (2008/10/08)
Extra coordination of zinc complexes of bromo-substituted tetraphenylporphyrins was studied by spectrophotometry. It was found that the stability of complexes thus formed markedly increases upon β- bromosubstitution in tetraphenylporphine. The effects of
