Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions
Molecular redox compounds show promise for the development of solid contact ion selective electrodes (SC-ISEs) for anion determinations. In this work, a hydrophobic bis-tridentate Ru-bipod complex was studied as a molecular redox transducer in voltammetric SC-ISEs. Thin film voltammetric behavior wa...
| Main Authors: | , , , |
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| Format: | Journal Article |
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2024
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| Online Access: | http://purl.org/au-research/grants/arc/LP160100359 http://hdl.handle.net/20.500.11937/95990 |
| _version_ | 1848766067183190016 |
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| author | Kalaei, N. Ide, M. Haga, M.A. Arrigan, Damien |
| author_facet | Kalaei, N. Ide, M. Haga, M.A. Arrigan, Damien |
| author_sort | Kalaei, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Molecular redox compounds show promise for the development of solid contact ion selective electrodes (SC-ISEs) for anion determinations. In this work, a hydrophobic bis-tridentate Ru-bipod complex was studied as a molecular redox transducer in voltammetric SC-ISEs. Thin film voltammetric behavior was achieved in films comprised of the Ru-bipod complex, polyvinylchloride (PVC) and a plasticiser, nitrophenyloctylether (NPOE). Importantly, the choice of plasticiser had a significant effect on the SC-ISE response of the Ru-bipod complex; i. e., voltammetric responses of the Ru-bipod complex in NPOE films were sharper and more intense than in bis(2-ethylhexyl) sebacate (DOS) films. Moreover, addition of tetradodecylammonium tetrakis(4-chlorophenyl)borate (ETH 500) to the membrane had an unfavorable impact on detection of anions due to oxidation of this salt in the film. Although the thin film electrode showed close-to-Nernstian behavior in anion responses, the detection responses in the presence of very hydrophilic anions such as sulfate ion were shifted to higher potentials (>1 V) with a subsequent loss of sensitivity. Overall, the Ru-bipod complex operates as a simple transducer in SC-ISEs with benefits in anion detection. |
| first_indexed | 2025-11-14T11:45:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-95990 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:45:15Z |
| publishDate | 2024 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-959902024-10-09T07:59:54Z Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions Kalaei, N. Ide, M. Haga, M.A. Arrigan, Damien Molecular redox compounds show promise for the development of solid contact ion selective electrodes (SC-ISEs) for anion determinations. In this work, a hydrophobic bis-tridentate Ru-bipod complex was studied as a molecular redox transducer in voltammetric SC-ISEs. Thin film voltammetric behavior was achieved in films comprised of the Ru-bipod complex, polyvinylchloride (PVC) and a plasticiser, nitrophenyloctylether (NPOE). Importantly, the choice of plasticiser had a significant effect on the SC-ISE response of the Ru-bipod complex; i. e., voltammetric responses of the Ru-bipod complex in NPOE films were sharper and more intense than in bis(2-ethylhexyl) sebacate (DOS) films. Moreover, addition of tetradodecylammonium tetrakis(4-chlorophenyl)borate (ETH 500) to the membrane had an unfavorable impact on detection of anions due to oxidation of this salt in the film. Although the thin film electrode showed close-to-Nernstian behavior in anion responses, the detection responses in the presence of very hydrophilic anions such as sulfate ion were shifted to higher potentials (>1 V) with a subsequent loss of sensitivity. Overall, the Ru-bipod complex operates as a simple transducer in SC-ISEs with benefits in anion detection. 2024 Journal Article http://hdl.handle.net/20.500.11937/95990 10.1002/celc.202300508 http://purl.org/au-research/grants/arc/LP160100359 http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Kalaei, N. Ide, M. Haga, M.A. Arrigan, Damien Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title | Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title_full | Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title_fullStr | Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title_full_unstemmed | Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title_short | Evaluation of a Ru-bipod Complex as a Redox Transducer for Membrane-Based Voltammetry of Anions |
| title_sort | evaluation of a ru-bipod complex as a redox transducer for membrane-based voltammetry of anions |
| url | http://purl.org/au-research/grants/arc/LP160100359 http://hdl.handle.net/20.500.11937/95990 |