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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Synthesis, photophysical and photochemical properties of aryloxy tetra-substituted gallium and indium phthalocyanine derivatives
Tetrahedron, Volume 63, No. 6, Year 2007
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Description
The synthesis, photophysical and photochemical properties of the tetra-substituted aryloxy gallium(III) and indium(III) phthalocyanines are reported for the first time. General trends are described for photodegradation, singlet oxygen, fluorescence, and triplet quantum yields and triplet lifetimes of these compounds. The introduction of phenoxy and tert-butylphenoxy substituents on the ring resulted in lowering of fluorescence quantum yields and lifetimes, and triplet quantum yields, and an increase of kIC, kISC, and kF. Photoreduction of the complexes was observed during laser flash photolysis. The singlet oxygen quantum yields (ΦΔ), which give an indication of the potential of the complexes as photosensitizers in applications where singlet oxygen is required (Type II mechanism) ranged from 0.41 to 0.91. Thus, these complexes show potential as Type II photosensitizers. © 2006 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Durmuş, Mahmut
South Africa, Grahamstown
Rhodes University
Turkey, Gebze
Gebze Teknik Üniversitesi
Nyokong, Tebello
South Africa, Grahamstown
Rhodes University
Statistics
Citations: 106
Authors: 2
Affiliations: 2
Identifiers
Doi:
10.1016/j.tet.2006.11.089