- Title
- Metal (Co, Fe) tribenzotetraazachlorin–fullerene conjugates
- Creator
- Ozoemena, Kenneth I, Mamuru, Solomon A, Fukuda, Takamitsu, Kobayashi, Nagao, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2009
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/263464
- Identifier
- vital:53630
- Identifier
- xlink:href="https://doi.org/10.1016/j.elecom.2009.04.011"
- Description
- Novel hexabutylsulphonyltribenzotetraazachlorin–fullerene (C60) complexes of iron (FeHBSTBTAC–C60) and cobalt (CoHBSTBTAC–C60) have been synthesized and their electrochemistry and oxygen reduction reaction (ORR) compared with their octabutylsulphonylphthalocyanine analogues (FeOBSPc and CoOBSPc). It is proved that electron-withdrawing substituents (–SO2Bu and C60) on phthalocyanine macrocycle exhibit distinct impact on the solution electrochemistry of these metallophthalocyanine (MPc) complexes. The more electron-withdrawing C60 substituent suppressed ORR compared to the –SO2Bu in alkaline medium. FeOBSPc showed the best ORR activity involving a direct 4-electron mechanism, a rate constant of ∼1 × 108 cm3 mol−1 s−1 and a Tafel slope of −171 mV dec−1.
- Format
- computer, online resource, application/pdf, 1 online resource (5 pages), pdf
- Publisher
- Elsevier
- Language
- English
- Relation
- Electrochemistry Communications, Ozoemena, K.I., Mamuru, S.A., Fukuda, T., Kobayashi, N. and Nyokong, T., 2009. Metal (Co, Fe) tribenzotetraazachlorin–fullerene conjugates: Impact of direct π-bonding on the redox behaviour and oxygen reduction reaction. Electrochemistry communications, 11(6), pp.1221-1225, Electrochemistry Communications volume 11 number 16 p. 1221 2009 1873-1902
- 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
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