Study of Acidity and Coordination Properties of 2,3,7,8,12,13,17,18-Octabromo-5,10,15,20- tetraphenylporphyrin in the System of 1,8-Diazabicyclo [5.4.0] undec-7-ene-Acetonitrile

摘要

Spectrophotometric titration method was used to study the acidic properties of 2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetraphenylporphyrin in the presence of a deprotonated agent, l,8-diazabicyclo[5.4.0] undec-7-ene, in acetonitrile. The spectral characteristics of the ionized forms and combined ionization constant for the first and second stages were revealed. The reaction of complex formation between the dianionic forms of 2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetraphenylporphyrin and zinc acetate was studied.