Synthesis and characterization of novel guanidine ligands featuring biphenyl or binaphthyl backbones
In this paper we report on the synthesis and characterization of several new 2,2′-bisguanidino-1,1′-biphenyl and -binaphthyl ligands as well as the electron donor 3,3′,4,4′-tetrakis(tetramethylguanidino)-1,1′-biphenyl. Chiral bisguanidine ligands were prepared with binaphthyl backbones. The solid-st...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
26 January 2011
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| In: |
European journal of inorganic chemistry
Year: 2011, Issue: 8, Pages: 1302-1314 |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201000981 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/ejic.201000981 Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201000981 
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| Author Notes: | Astrid Maronna, Elvira Bindewald, Elisabeth Kaifer, Hubert Wadepohl, and Hans-Jörg Himmel |
| Summary: | In this paper we report on the synthesis and characterization of several new 2,2′-bisguanidino-1,1′-biphenyl and -binaphthyl ligands as well as the electron donor 3,3′,4,4′-tetrakis(tetramethylguanidino)-1,1′-biphenyl. Chiral bisguanidine ligands were prepared with binaphthyl backbones. The solid-state structures were analysed by single-crystal X-ray diffraction. UV/Vis and Raman spectra provided a qualitative insight into the rotational barriers in solution and in the solid state. Finally, late-transition-metal complexes of two of these ligands were prepared. These complexes prefer a κ1 rather than a κ2 coordination mode. The discussion of the experimental results is complemented by quantum chemical (DFT) calculations. Finally, we report on the first catalytic test reactions. |
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| Item Description: | Gesehen am 11.08.2022 |
| Physical Description: | Online Resource |
| ISSN: | 1099-0682 |
| DOI: | 10.1002/ejic.201000981 |