- Title
- Naked Eye and Colorimetric Detection of Cyanide with a 1, 3‐Diethyl‐2‐thiobarbituric Acid Substituted Ferrocene Chemosensor
- Creator
- Babu, Balaji, Mack, John, Nyokong, Tebello
- Subject
- To be catalogued
- Date
- 2021
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/190567
- Identifier
- vital:45006
- Identifier
- xlink:href="https://doi.org/10.1002/slct.202100163"
- Description
- A 1,3-diethyl-2-thiobarbituric-acid-substituted ferrocene (FET) has been evaluated for its cyanide sensing ability by UV-visible absorption spectroscopy and other characterization methods. FET provides a ratiometric colorimetric chemosensor for the CN− anion detection in 1 : 1 DMSO/H2O (v/v) solution. The addition of CN− results in an immediate color change from dark blue to pale orange that is visible to the naked eye. Mechanism studies and molecular modelling with TD-DFT calculations demonstrate that nucleophilic addition of CN− to an electrophilic sp2-hybridized carbon atom blocks charge transfer from the ferrocene ring complex to the thiobarbituric acid moiety. The FET sensor exhibits excellent selectivity for CN− and a limit of detection of 0.2 μM.
- Format
- computer, online resource, application/pdf, 1 online resource (5 pages), pdf
- Publisher
- Wiley Library Online
- Language
- English
- Relation
- ChemistrySelect, Babu, B., Mack, J. and Nyokong, T., 2021. Naked Eye and Colorimetric Detection of Cyanide with a 1, 3‐Diethyl‐2‐thiobarbituric Acid Substituted Ferrocene Chemosensor. ChemistrySelect, 6(7), pp.1448-1452, ChemistrySelect volume 6 number 7 p. 1448 2021 2365-6549
- Rights
- Publisher
- Rights
- Closed Access
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Collections
Mack, John (Associate Prof)
RU DST/NRF SARChI for Medicinal Chemistry and Nanotechnology
Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
SDG 03. Good Health and Well-Being
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Naked Eye and Colorimetric Detection of Cyanide.pdf | 824 KB | Adobe Acrobat PDF | View Details Download |