- Title
- Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles
- Creator
- Chauke, Vongani P, Arslanoglu, Yasin, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2011
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/247545
- Identifier
- vital:51593
- Identifier
- xlink:href="https://doi.org/10.1016/j.jphotochem.2011.04.020"
- Description
- We report on the synthesis of 2,(3)- (peripheral) and 1,(4)- (non-peripheral) (2-mercaptopyridine)phthalocyanine complexes of titanium (IV) oxide (5 and 6 respectively), and tantalum (III) hydroxide (7, peripheral only), their photochemical and photophysical parameters and the photocatalytic oxidation of cyclohexene in the presence of gold nanoparticles (AuNPs). The singlet oxygen quantum yield values increased in the presence of AuNPs, for complexes 5 and 6. The percentage conversion values for cyclohexene using 5, 6 and 7 were 27%, 20% and 14%, respectively. These values increased considerably in the presence of AuNPs, except complex for 7. The products obtained include cyclohexene oxide, 2-cyclohexen-1-ol, 2-cyclohexene-1-one and 1,2-cyclohexanediol. Low values of singlet oxygen quantum yields favour the formation of 1,2-cyclohexanediol.
- Format
- computer, online resource, application/pdf, 1 online resource (9 pages), pdf
- Publisher
- Elsevier
- Language
- English
- Relation
- Journal of Photochemistry and Photobiology A: Chemistry, Chauke, V.P., Arslanoglu, Y. and Nyokong, T., 2011. Synthesis and photophysical behaviour of tantalum and titanium phthalocyanines in the presence of gold nanoparticles: photocatalysis towards the oxidation of cyclohexene. Journal of Photochemistry and Photobiology A: Chemistry, 221(1), pp.38-46, Journal of Photochemistry and Photobiology A: Chemistry volume 221 number 1 p. 38 2011 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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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 and photophysical behaviour of tantalum and titanium phthalocyanines.pdf | 655 KB | Adobe Acrobat PDF | View Details |