Synthesis, characterization and photophysical properties of novel tetrasubstituted phthalocyaninato zinc derivatives

Peripherally tetraimido-substituted phthalocyaninato zinc compounds 1–3 were synthesized through the reaction of tetraamino-substituted phthalocyaninato zinc with 4-Br-1,8-naphthalic anhydride, 4-hexahydropyridine-1,8-naphthalic anhydride and 4-morpholine-1,8-naphthalic anhydride, respectively. The compounds were characterized by MS, 1H NMR, UV–vis, IR and elemental analysis, the results of which were consistent with the proposed structures. The effects of substitutes, acid/base and solvents on the UV–vis spectra of the new complexes were discussed in detail.