The reaction of Pb(OAc)(2) with meso-tetraphenylporphin in boiling pyridine
or N,N-dimethylformamide gave complexes of Pb-II with tetraphenylchlorin o
r Pb-IV with tetraphenylporphin. The scheme of redox reactions occurring du
ring the complex formation involving Pb2+ as the reducing agent was suggest
ed.