- Title
- Synthesis and photophysical properties of a covalently linked porphyrin-phthalocyanine conjugate
- Creator
- Zhao, Zhixin, Ogunsipe, Abimbola O, Maree, M David, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2005
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/300358
- Identifier
- vital:57922
- Identifier
- xlink:href="https://doi.org/10.1142/S1088424605000253"
- Description
- The synthesis of a phthalocyanine-porphyrin heteropentamer (zinc(II) tetra(5-phenoxy-10,15,20-triphenylporphyrin)) zinc(II) phthalocyanine, (ZnPc-(ZnTPP)4), containing four units of zinc tetraphenylporphyrin linked to a central zinc phthalocyanine macrocycle via an ether linkage is reported. The photophysical parameters of the pentamer are reported in toluene and dimethyl sulfoxide (DMSO). The observed differences in the fluorescence behavior of the pentamer in the two solvents is explained in terms of emission from different states; charge transfer state in DMSO and locally excited state in toluene. The rate constants for fluorescence, intersystem crossing, internal conversion, and of charge and energy transfer are reported for the pentamer. Quantum yields for fluorescence, internal conversion, triplet state and of charge and energy transfer are also reported for the pentamer, ZnPc-(ZnTPP)4 and the mixture of ZnPc and ZnTPP. The latter two parameters are higher in the pentamer compared to a mixture containing ZnPc and ZnTPP.
- Format
- computer, online resource, application/pdf, 1 online resource (13 pages), pdf
- Publisher
- World Scientific Publishing
- Language
- English
- Relation
- Journal of Porphyrins and Phthalocyanines, Zhao, Z., Ogunsipe, A.O., Maree, M. D. and Nyokong, T., 2005. Synthesis and photophysical properties of a covalently linked porphyrin-phthalocyanine conjugate. Journal of Porphyrins and Phthalocyanines, 9(03), pp.186-197, Journal of Porphyrins and Phthalocyanines volume 9 number 03 p. 186 2005 1099-1409
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the World Scientific Copyright and Permissions Statement (https://0-www.worldscientific.com.wam.seals.ac.za/page/permissions)
- Rights
- Closed Access
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Collections
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Synthesis and photophysical properties of a covalently linked porphyrin-phthalocyanine conjugate.pdf | 755 KB | Adobe Acrobat PDF | View Details |