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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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
07 October 2012
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| In: |
European journal of inorganic chemistry
Year: 2012, Issue: 30, Pages: 4833-4845 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201200679 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1002/ejic.201200679 Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201200679 
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| Author Notes: | Simone Stang, Anna Lebkücher, Petra Walter, Elisabeth Kaifer, and Hans-Jörg Himmel |
| Summary: | 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. |
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| Item Description: | Gesehen am 14.08.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201200679 |