Redox-active guanidine ligands with pyridine and p-benzoquinone backbones
Herein we report on the synthesis and some aspects of the chemistry of the new redox-active ligands 2,3,5,6-tetrakis(tetramethylguanidino)pyridine, 2,3,5,6-tetrakis(tetramethylguanidino)-p-benzoquinone and 2,3,5,6-tetrakis(N,N′-dimethyl-N,N′-ethyleneguanidino)-p-benzoquinone. All three ligands are s...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
07 October 2012
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| In: |
European journal of inorganic chemistry
Year: 2012, Heft: 30, Pages: 4833-4845 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201200679 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1002/ejic.201200679 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201200679 |
| Verfasserangaben: | Simone Stang, Anna Lebkücher, Petra Walter, Elisabeth Kaifer, and Hans-Jörg Himmel |
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| 520 | |a Herein we report on the synthesis and some aspects of the chemistry of the new redox-active ligands 2,3,5,6-tetrakis(tetramethylguanidino)pyridine, 2,3,5,6-tetrakis(tetramethylguanidino)-p-benzoquinone and 2,3,5,6-tetrakis(N,N′-dimethyl-N,N′-ethyleneguanidino)-p-benzoquinone. All three ligands are strong electron donors. In addition, the p-benzoquinone systems feature low LUMO energies and small HOMO-LUMO gaps. A comparison of the ligands was made with regard to their optical properties, Brønsted basicity and electron-donor properties; results of quantum chemical calculations were included in this comparison. Subsequently, dinuclear copper complexes were prepared. Preliminary experiments on their redox chemistry followed. | ||
| 650 | 4 | |a Coordination compounds | |
| 650 | 4 | |a Copper | |
| 650 | 4 | |a Density functional calculations | |
| 650 | 4 | |a Guanidine | |
| 650 | 4 | |a Redox chemistry | |
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