- Title
- Photochemical studies of binuclear phenoxysubstituted phthalocyanines containing catecholate bridges
- Creator
- Seotsanyana-Mokhosi, Itumeleng, Maree, Suzanne, Maree, M David, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2003
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/304808
- Identifier
- vital:58492
- Identifier
- xlink:href="https://doi.org/10.1142/S1088424603000239"
- Description
- Binuclear ZnPc complexes covalently bridged by catechol units have been synthesized and their absorption and photochemical properties examined. The complexes studied are 1,2-bis-2',9',16',23'-triphenoxyphthalocyaninatozinc benzene (6a), 1,2-bis-2'-9',16',23'-tri-4-carboxyphe-noxyphthalocyaninatozinc benzene (6b), 1,2-bis-2',9',16',23'-tri-4-nitrophenoxyphthalocyaninato- zinc benzene (6c) and 1,2-bis-2'-9',16',23'-tri-4-tert-butylphenoxyphthalocyaninatozinc benzene (6d). Larger intramolecular coupling was observed for 6b and 6c, containing the carboxyphenoxy and nitrophenoxy substituents, respectively, than for 6a and 6d. A single Q band peak was observed for the fluorescence spectra of 6b and 6c, whereas, 6a and 6d showed a split Q band. The absence of the high energy fluorescence peaks corresponding to absorbance peaks in the 640 nm region, suggests that the intramolecular coupling is broken by excitation for complexes 6b and 6c.
- Format
- computer, online resource, application/pdf, 1 online resource (10 pages), pdf
- Publisher
- World Scientific Publishing
- Language
- English
- Relation
- Journal of Porphyrins and Phthalocyanines, Seotsanyana-Mokhosi, I., Maree, S., Maree, M.D. and Nyokong, T., 2003. Photochemical studies of binuclear phenoxysubstituted phthalocyanines containing catecholate bridges. Journal of Porphyrins and Phthalocyanines, 7(03), pp.167-175, Journal of Porphyrins and Phthalocyanines volume 7 number 03 p. 167 2003 1088-4246
- 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
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