14 new gold(I) NHC complexes of the type [AuX(Pr-bimy)] (Pr-bimy = 1,3-diisopropylbenzimidazolin-2-ylidene) have been prepared and fully characterized. These complexes and their reported analogues were used to systematically compare and rank the donating abilities of overall 34 anionic X-type donors by C NMR spectroscopy. Specifically, the carbene chemical shift of the Pr-bimy ligand was found to be responsive to the ligand X spanning an overall range Δδ > 37 ppm between the strongest and weakest donor in this study.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c01811 | DOI Listing |
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