Chemistry Letters, Vol.29, No.2, 184-185, 2000
Low symmetrical phthalocyanines having spectroscopic and electrochemical properties characteristic of unexpected accidental S-1 state degeneracy and non-planar distortions
Low-symmetrical phthalocyanines (Pcs) 2-5 prepared by mixed condensation of tetraphenylphthalonitrile and 4-phenylthiophthalonitrile in the presence of a copper salt. show spectroscopic, electrochemical, and molecular model indications which suggest varying degrees of non-planar distortions of thp Pc plane and unexpected S-1 state degeneracy.