In this study, the novel tetra-substituted Zn ( II )(3), Co ( II )(4) and In ( III )acetate (5) phthalocyanines were synthesized by cyclotetramerization reactions of 7-(2,3-dicyanophenoxy)-8-methylcoumarin-4-acetic acid (2) with corresponding metal salts. All the new compounds have been characterized by MALDI-TOF mass, FT-IR and UV-vis spectra, and elemental analysis as well. The electrochemical, in situ spectroelectrochemical and photochemical properties of tetra-substituted Zn ( II ), Co ( II ) and In ( III )acetate phthalocyanines were also investigated.