Intramolecular metal-ligand electron transfer triggered by co-ligand substitution
The possibility of directed stimulation of intramolecular electron transfer between a metal and a redox-active ligand in a molecular coordination compound is the key to its application in molecular catalysis and other research themes. Although the stimulation by a substitution reaction of the co-lig...
Gespeichert in:
| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
21 Jun 2018
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| In: |
Dalton transactions
Year: 2018, Jahrgang: 47, Heft: 28, Pages: 9430-9441 |
| ISSN: | 1477-9234 |
| DOI: | 10.1039/C8DT01234B |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1039/C8DT01234B Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2018/dt/c8dt01234b 
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| Verfasserangaben: | Alexandra Ziesak, Lena Steuer, Elisabeth Kaifer, Norbert Wagner, Johannes Beck, Hubert Wadepohl and Hans-Jörg Himmel |
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| 245 | 1 | 0 | |a Intramolecular metal-ligand electron transfer triggered by co-ligand substitution |c Alexandra Ziesak, Lena Steuer, Elisabeth Kaifer, Norbert Wagner, Johannes Beck, Hubert Wadepohl and Hans-Jörg Himmel |
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| 520 | |a The possibility of directed stimulation of intramolecular electron transfer between a metal and a redox-active ligand in a molecular coordination compound is the key to its application in molecular catalysis and other research themes. Although the stimulation by a substitution reaction of the co-ligands is often postulated as key step in catalytic cycles using redox-active ligands as electron reservoirs, there are only a few explicit examples for such reactions. Herein we report the synthesis of the first dicationic and dinuclear CuI complexes featuring the oxidized form of a redox-active tetrakisguanidine ligand (1,2,4,5-tetrakis(tetramethylguanidino)benzene 1) as a bridging ligand and two neutral co-ligands L (acetonitrile or pyridine), [1{Cu(Cl)L}2]2+. An intramolecular electron transfer between the copper atom and the tetrakisguanidine ligand 1, leading to a dinuclear CuII complex with the reduced form of the tetrakisguanidine ligand 1, is triggered by substitution of the neutral co-ligands L. | ||
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