Oxidation and photooxidation of sulfur-containing compounds in the presence of water soluble phthalocyanine complexes

Preparation of a thermosensitive cobalt phthalocyanine/N-isopropylacrylamide copolymer and its catalytic activity on thiol

“…Metallophthalocyanines (MtPc) have attracted considerable attention as oxidation catalysts because of tetra N -donor macrocyclic structural similarity to the naturally occurring metalloporphyrins, their chemical and thermal stability, and their rather cheap and easy preparation on a large scale [1][2][3][4][5][6], whereas they have the following problems: low solubility, high aggregation tendency, and difficulty in catalyst recovery and recycling [7,8]. Strategies of immobilizing MtPc on multifarious insoluble supports, such as zeolites, activated charcoal, and clays, have been introduced to prepare polymeric phthalocyanine catalysts, facilitate catalyst separation and recycling, and reduce effluent contamination [9][10][11][12][13].…”

Photophysical and photochemical parameters of octakis (benzylthio) phthalocyaninato zinc, aluminium and tin: Red shift index concept in solvent effect on the ground state absorption of zinc phthalocyanine derivatives

“…MPcs aggregate in solutions [14][15][16][17] and aggregation diminishes their photosensitising abilities. In some cases, aggregation may result in low singlet oxygen production or reduced lifetime.…”

Spectral studies of zinc octacarboxyphthalocyanine aggregation

“…Zinc phthalocyanines are also attractive sensitisers for photodegradation of pollutants, e.g. for the oxidation of chlorinated phenols [12,27], 4-nitrophenol [28] and sulphur containing compounds -sulphides and thiols [29,30]. Association of Pc molecules generally reduces their photocatalytic activity.…”