- Title
- Synthesis, Photophysical and Photochemical Properties of Poly (oxyethylene)‐Substituted Phthalocyaninato Oxotitanium (IV) Complexes
- Creator
- Atilla, Devrim, Durmus, Mahmut, Yılmaz, Özgür, Gürek, Ayşe Gül, Ahsen, Vefa, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2007
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/271263
- Identifier
- vital:54526
- Identifier
- xlink:href="https://doi.org/10.1002/ejic.200700057"
- Description
- The synthesis, photophysical and photochemical properties of tetra- and chlorotetrapoly(oxyethylene)-substituted oxotitanium(IV) phthalocyanines are reported for the first time. The new compounds were characterized by elemental analysis, IR, 1H and 13C NMR spectroscopy, electronic spectroscopy and mass spectra. These complexes showed monomeric behaviour in solution. General trends are described for photodegredation, singlet oxygen, triplet state and fluorescence quantum yields, and triplet and fluorescence lifetimes of these compounds in dimethyl sulfoxide (DMSO). Photophysical and photochemical properties of phthalocyanine complexes are very useful for PDT applications. The complexes showed high triplet quantum yields and triplet lifetimes in DMSO. 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), were 0.72 and 0.78 for 3a and 5a, respectively. Thus, these complexes show potential as Type II photosensitizers. These complexes were also quenched by benzoquinone for fluorescence quenching studies.
- Format
- computer, online resource, application/pdf, 1 online resource (9 pages), pdf
- Publisher
- Wiley Library Online
- Language
- English
- Relation
- European Journal Inorganic Chemistry, Atilla, D., Durmuş, M., Yılmaz, Ö., Gürek, A.G., Ahsen, V. and Nyokong, T., 2007. Synthesis, Photophysical and Photochemical Properties of Poly (oxyethylene)‐Substituted Phthalocyaninato Oxotitanium (IV) Complexes. European Journal Inorganic Chemistry 2007, 3573–3581, European Journal Inorganic Chemistry volume 2007 p. 3573 2007 1099-0682
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
- Rights
- Closed Access
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Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Synthesis, Photophysical and Photochemical Properties of Poly (oxyethylene)‐Substituted Phthalocyaninato Oxotitanium (IV) Complexes.pdf | 612 KB | Adobe Acrobat PDF | View Details |