Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines
In coordination chemistry, 2,2′:6′,2″-terpyridine is a versatile and extensively studied tridentate ligand. Terpyridine forms stable complexes with a variety of metal ions through coordination sites provided by the three nitrogen atoms in its pyridine rings. This paper presents an electrochemical st...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-10-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/21/5078 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846173312596574208 |
|---|---|
| author | Nandisiwe G. S. Mateyise Marrigje M. Conradie Jeanet Conradie |
| author_facet | Nandisiwe G. S. Mateyise Marrigje M. Conradie Jeanet Conradie |
| author_sort | Nandisiwe G. S. Mateyise |
| collection | DOAJ |
| description | In coordination chemistry, 2,2′:6′,2″-terpyridine is a versatile and extensively studied tridentate ligand. Terpyridine forms stable complexes with a variety of metal ions through coordination sites provided by the three nitrogen atoms in its pyridine rings. This paper presents an electrochemical study on various bis(terpyridine)osmium(II) complexes, addressing the absence of a systematic investigation into their redox behavior. Additionally, a computational chemistry analysis was conducted on these complexes, as well as on eight previously studied osmium(II)-bipyridine and -phenanthroline complexes, to expand both the experimental and theoretical understanding. The experimental redox potentials, Hammett constants, and DFT-calculated energies show linear correlations due to the electron-donating or electron-withdrawing nature of the substituents, as described by the Hammett constants. These substituent effects cause shifts to lower or higher redox potentials, respectively. |
| format | Article |
| id | doaj-art-63d90cc4f43a4f0d9ce19c6d39ac6cc9 |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-63d90cc4f43a4f0d9ce19c6d39ac6cc92024-11-08T14:38:16ZengMDPI AGMolecules1420-30492024-10-012921507810.3390/molecules29215078Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-TerpyridinesNandisiwe G. S. Mateyise0Marrigje M. Conradie1Jeanet Conradie2Department of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South AfricaDepartment of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South AfricaDepartment of Chemistry, University of the Free State, P.O. Box 339, Bloemfontein 9300, South AfricaIn coordination chemistry, 2,2′:6′,2″-terpyridine is a versatile and extensively studied tridentate ligand. Terpyridine forms stable complexes with a variety of metal ions through coordination sites provided by the three nitrogen atoms in its pyridine rings. This paper presents an electrochemical study on various bis(terpyridine)osmium(II) complexes, addressing the absence of a systematic investigation into their redox behavior. Additionally, a computational chemistry analysis was conducted on these complexes, as well as on eight previously studied osmium(II)-bipyridine and -phenanthroline complexes, to expand both the experimental and theoretical understanding. The experimental redox potentials, Hammett constants, and DFT-calculated energies show linear correlations due to the electron-donating or electron-withdrawing nature of the substituents, as described by the Hammett constants. These substituent effects cause shifts to lower or higher redox potentials, respectively.https://www.mdpi.com/1420-3049/29/21/5078osmium(II)redox potentialelectrochemistryDFTterpyridine |
| spellingShingle | Nandisiwe G. S. Mateyise Marrigje M. Conradie Jeanet Conradie Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines Molecules osmium(II) redox potential electrochemistry DFT terpyridine |
| title | Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines |
| title_full | Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines |
| title_fullStr | Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines |
| title_full_unstemmed | Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines |
| title_short | Synthesis, Electrochemistry and Density Functional Theory of Osmium(II) Containing Different 2,2′:6′,2″-Terpyridines |
| title_sort | synthesis electrochemistry and density functional theory of osmium ii containing different 2 2 6 2 terpyridines |
| topic | osmium(II) redox potential electrochemistry DFT terpyridine |
| url | https://www.mdpi.com/1420-3049/29/21/5078 |
| work_keys_str_mv | AT nandisiwegsmateyise synthesiselectrochemistryanddensityfunctionaltheoryofosmiumiicontainingdifferent2262terpyridines AT marrigjemconradie synthesiselectrochemistryanddensityfunctionaltheoryofosmiumiicontainingdifferent2262terpyridines AT jeanetconradie synthesiselectrochemistryanddensityfunctionaltheoryofosmiumiicontainingdifferent2262terpyridines |