Photosensitized transformation of 4-chlorophenol in the presence of aggregated and non-aggregated metallophthalocyanines

Rapid degradation of bisphenol A using air as the oxidant catalyzed by polynuclear phthalocyanine complexes under visible light irradiation

“…The photooxidation of substrates by oxygen in the presence of visible light activation of photosensitizers is of increasing interest. Various photosensitizers, such as dyes, porphyrines and phthalocyanines, have been used to be photosensitizers to oxidize thiols, sulfide, thioethers, phenol and monochlorophenols [22][23][24][25][26] Recently, polynuclear metal phthalocyanine complexes have attracted attentions because of their increased catalytic properties compared to mononuclear one [27,28]. Some polynuclear cobalt phthalocyanine complexes exhibit a much higher specific activity to activate the oxygen than the mononuclear compound in the oxidation of sulfide [29].…”

Synthesis and selected properties of metallo and metal-free 2,3,9,10,16,17,23,24 –octacarboxyphthalocyanines

“…87 Aluminum and zinc octacarboxyphthalocyanines were used in the phototransition of 4-chlorophenol into benzoquinone. 88,89 A significant activity, as far as 4-chlorophenol photooxidation is concerned, was not obtained for AlPcOC complex despite the fact that the compound did not occur in the solution (pH 10) as a monomer and it did not show significant degradation. This can be explained by the creation of a hydrogen bonding between the axial hydroxyl groups (Figure 4).…”

Diphenylethoxy-substituted metal-free and metallophthalocyanines as potential photosensitizer for photodynamic therapy: synthesis and photophysical and photochemical properties

“…Inserting substituents into the peripheral positions of the macrocycles enhances their solubility since these groups increase the space between the stacked Pc core and activate their solvation. Peripheral substitution 5 enables Pc products to be soluble in apolar solvents. Pcs have substituents whose carboxyl or quaternary ammonium moiety enhances solubility in a wide pH range of aqueous solutions.…”

“…Reaction of the substituted phthalonitrile (1) with metal salts in the presence of metal salts in pentanol through a metal-assisted cyclotetramerization process gives the peripherally tetra-substituted Pcs (3)(4)(5) Figure 1 as an example for 5) for 2, 3, and 5, respectively. We also observed a [M] + peak at 1355.5 for 3.…”