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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Photochemical studies of tetra-2,3-pyridinoporphyrazines
Journal of Photochemistry and Photobiology A: Chemistry, Volume 140, No. 3, Year 2001
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Description
Tetra-2,3-pyridinoporphyrazines and the corresponding water-soluble N,N′,N′′,N′′′-tetramethyl-tetra-2,3- pyridinoporphyrazine complexes, containing central metal atoms; M=Ge, Sn, Si and Zn, were synthesized and their photochemical properties were investigated. The reductive quenching of pyridinoporphyrazines excited states, enhanced relative to phthalocyanines, was considered as the first photochemical step of dyes phototransformation in dimethylformamide (DMF) and dimethylsulfoxide (DMSO) solutions under irradiation with visible light. Efficiency of singlet oxygen photosensitization decreases significantly in the row phthalocyanines, unquaternized, quaternized tetra-2,3-pyridinoporphyrazine metallocomplexes. © 2001 Elsevier Science B.V.
Authors & Co-Authors
Seotsanyana-Mokhosi, Itumeleng
South Africa, Grahamstown
Rhodes University
Kuznetsova, Nina A.
South Africa, Grahamstown
Rhodes University
Nyokong, Tebello
South Africa, Grahamstown
Rhodes University
Statistics
Citations: 255
Authors: 3
Affiliations: 1
Identifiers
Doi:
10.1016/S1010-6030(01)00427-0
Research Areas
Environmental