- Title
- The synthesis and photophysicochemical properties of low-symmetry zinc phthalocyanine analogues
- Creator
- Chidawanyika, Wadzanai J U, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2009
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/263397
- Identifier
- vital:53624
- Identifier
- xlink:href="https://doi.org/10.1016/j.jphotochem.2009.06.005"
- Description
- The synthesis of a low-symmetry derivative, zinc mono-carboxy substituted phthalocyanine, ZnPc-COOH (4) has been reported. The photochemical and photophysical properties of ZnPc-COOH (4), ZnTMPyPc (5), ZnttbPc (6) and a previously synthesized low-symmetry derivative, ZnttbIPc (7), in various organic solvents are reported. The red-shifting of the spectra of 4 and 5 (relative to that of unsubstituted zinc phthalocyanine, ZnPc) is a function of the electron-donating sulfur-containing substituents attached to the periphery of the molecule. High triplet quantum yields (ФT) generally occur in response to substitution on the zinc phthalocyanine ring periphery. The highest ФT values and triplet lifetimes (τT) occur in DMSO for all derivatives as a result of the solvent's high viscosity. The strongly electron-withdrawing imido fused ring of ZnttbIPc (7) stabilizes it against photo-oxidative degradation relative to the other derivatives.
- Format
- computer, online resource, application/pdf, 1 online resource (8 pages), pdf
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Photochemistry and Photobiology A: Chemistry, Chidawanyika, W. and Nyokong, T., 2009. The synthesis and photophysicochemical properties of low-symmetry zinc phthalocyanine analogues. Journal of Photochemistry and Photobiology A: Chemistry, 206(2-3), pp.169-176, Journal of Photochemistry and Photobiology A: Chemistry volume 206 number 2 - 3 p. 169 2009 1010-6030
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Elsevier Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-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 Download | SOURCE1 | The synthesis and photophysicochemical properties.pdf | 652 KB | Adobe Acrobat PDF | View Details Download |