Photophysical and Photochemical Properties of Ni(II), Pd(II) and Pt(II) aryloxo and alkylthio derivatised phthalocyanines
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Date
2010-06
Authors
Ogunbayo, T.B.
Nyokong, T.
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Molecular Structure(ELSEVIER)
Abstract
Several aryloxo (3a–6a and 3b–6b) and alkylthio (3d and 3e) derivatised phthalocyanines were synthesized, characterized and the photochemical and photophysical properties investigated along with those
of the previously reported (3c–5c, 4d, 5d, 4e and 5e) complexes. The effects of open-shell metals (Ni(II),
Pd(II) and Pt(II)) on the photophysical and photochemical properties of the phthalocyanine ligands were
investigated. Palladium and platinum improved the triplet quantum yield and singlet oxygen generation
capacities of the unmetalated phthalocyanines (3a–3e) making their complexes candidates for further
investigation in photocatalysis. Ni(II)Pc analogues gave poor results compared with their Pd(II)Pc and
Pt(II)Pc counterparts.
Description
Keywords
Metal-free phthalocyanine , Nickel phthalocyanine , Palladium phthalocyanine , Platinum phthalocyanine , Fluorescence quantum yield , Triplet quantum yield
Citation
Ogunbayo, Taofeek & Nyokong, Tebello. (2010). Photophysical and photochemical properties of Ni(II), Pd(II) and Pt(II) aryloxo and alkylthio derivatised phthalocyanine. Journal of Molecular Structure - J MOL STRUCT. 973. 96-103. 10.1016/j.molstruc.2010.03.047.