- Title
- Syntheses and photophysics of new phthalocyanine derivatives of zinc, cadmium and mercury
- Creator
- Chidawanyika, Wadzanai J U, Ogunsipe, Abimbola, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2007
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/283940
- Identifier
- vital:56005
- Identifier
- xlink:href="https://doi.org/10.1039/B615663K"
- Description
- The syntheses of novel tetra{2,(3)-pyridyloxyphthalocyaninato} complexes of zinc, cadmium and mercury (TPyZnPc, TPyCdPc and TPyHgPc) are presented. Their spectral and photophysical properties (as well as those of their unsubstituted counterparts: ZnPc, CdPc and HgPc) are investigated. TPyZnPc and TPyCdPc are aggregated in non-coordinating solvents such as chloroform, while TPyHgPc is demetallated, as evident from their respective absorption spectra. The trends in fluorescence (ΦF), triplet (ΦT) and singlet oxygen (ΦΔ) quantum yields are explained in terms of relative strengths of spin–orbit coupling induced by the respective central metal ions in the complexes. The effect of the pyridyloxy substituents is a decrease in ΦF and an increase in ΦT values. The complexes are less fluorescent in DMSO but possess higher ΦT, triplet lifetimes (τT) and ΦΔ therein.
- Format
- computer, online resource, application/pdf, 1 online resource (8 pages), pdf
- Publisher
- Royal Soceity of Chemistry
- Language
- English
- Relation
- New Journal of Chemistry, Chidawanyika, W., Ogunsipe, A. and Nyokong, T., 2007. Syntheses and photophysics of new phthalocyanine derivatives of zinc, cadmium and mercury. New Journal of Chemistry, 31(3), pp.377-384, New Journal of Chemistry volume 31 number 3 p. 377 2007 1144-0546
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Royal Society of Chemistry Terms and Conditions Statement (https://0-www.rsc.org.wam.seals.ac.za/help-legal/)
- Rights
- Open Access
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Collections
Nyokong, Tebello (Distinguished Professor)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
RU Department of Chemistry
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