- Title
- The Primary Demonstration of Exciton Coupling Effects on Optical Limiting Properties of Blue Double-Decker Lanthanide Phthalocyanine Salts
- Creator
- Sekhosana, Kutloano E, Nkhahle, Reitumetse, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2018
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/234614
- Identifier
- vital:50213
- Identifier
- xlink:href="https://doi.org/10.1002/slct.201800597"
- Description
- In this manuscript, novel green and blue sandwich-type rare-earth phthalocyanines (LnPc2) are presented. This parent green LnPc2 complex is named bis-{2(3),9(10),16(17),23(24)-tetra(4-tert-buylphenoxy) phthalocyaninato} neodymium (III) (2) and modified into blue LnPc2 complexes (3), (4) and (5) based on hexadecyltrimethylammonium ion, mononeodymium(III) diacetate and monodysprosium(III) diacetate as counter ions, respectively. These stable blue lanthanide Pc salts are highly soluble in many organic and inorganic solvents. All complexes 2, 3, 4 and 5 were studied for optical limiting for the first time using Z-scan at nanosecond regime in the visible absorption spectral wavelength (532 nm). Our studies reveal the advantage of exciton coupling in blue sandwich-type rare-earth phthalocyanines over the π-radicals (characterized by blue valence at 485 nm) in the green counterpart which are in resonance with the 532 nm wavelength for optical limiting application. Large singlet ground state to excited state absorption cross section ratios were found, particularly for complex 5 in comparison to that of complex 2.
- Format
- computer, online resource, application/pdf, 1 online resource (12 pages), pdf
- Publisher
- Wiley Library Online
- Language
- English
- Relation
- ChemistrySelect, Sekhosana, K.E., Nkhahle, R. and Nyokong, T., 2018. The Primary Demonstration of Exciton Coupling Effects on Optical Limiting Properties of Blue Double‐Decker Lanthanide Phthalocyanine Salts. ChemistrySelect, 3(23), pp.6671-6682, ChemistrySelect volume 3 number 23 p. 6671 2018 2365-6549
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the Wiley Library Online Terms of Use Statement (https://onlinelibrary.wiley.com/terms-and-conditions)
- Rights
- Closed Access
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Collections
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | The Primary Demonstration of Exciton Coupling Effects.pdf | 755 KB | Adobe Acrobat PDF | View Details Download |