Tuning of the electronic structure and reactivity of metal complexes with redox-active guanidine ligands
Redox-active ligands change more drastically the electronic structure of metal complexes than non-redox-active ligands, with consequences on the magnetic and optical properties as well as the (redox) reactivity. In this work, redox-active guanidine ligands are integrated in cobalt and copper complex...
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| Main Authors: | , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
January 13, 2025
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| In: |
European journal of inorganic chemistry
Year: 2025, Volume: 28, Issue: 2, Pages: 1-17 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.202400597 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1002/ejic.202400597 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.202400597 
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| Author Notes: | Simone L. Holzmann, Johanna Osterbrink, Olaf Hübner, Maximilian Schulz, Andrei Poddelskii, Elisabeth Kaifer, and Hans-Jörg Himmel |
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| 245 | 1 | 0 | |a Tuning of the electronic structure and reactivity of metal complexes with redox-active guanidine ligands |c Simone L. Holzmann, Johanna Osterbrink, Olaf Hübner, Maximilian Schulz, Andrei Poddelskii, Elisabeth Kaifer, and Hans-Jörg Himmel |
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| 520 | |a Redox-active ligands change more drastically the electronic structure of metal complexes than non-redox-active ligands, with consequences on the magnetic and optical properties as well as the (redox) reactivity. In this work, redox-active guanidine ligands are integrated in cobalt and copper complexes. The variations in the electronic structures of cobalt complexes, in particular the relative energies of the states corresponding to high-spin CoII or low-spin CoIII, in dependence of the redox-active o-diguanidine ligand manifest themselves in different magnetic properties. Moreover, the electron transfer rates for copper complexes with two redox-active diguanidino-benzene ligands (self-exchange betweeen a monocationic CuI complex and the corresponding dicationic complex) were varied systematically over two orders of magnitude by choice of the redox-active diguanidine ligand, realizing redox pairs with intermediate or record-high rates. | ||
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| 650 | 4 | |a Electronic structure | |
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