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Herein, we report the synthesis and X-ray structural analysis of a collection of fluorinated metal N-heterocyclic carbenes (Ag, Au, Pd, Rh, Ir) and their precursor salts. The common structural feature of these species is a flanking fluoroethyl group, which is either freely rotating or embedded within a bicyclic framework. Solid state analysis confirmed a gauche conformational preference in all cases...
The preference of β‐fluoroimines to adopt a gauche conformation has been studied by single‐crystal X‐ray diffraction analysis and DFT methods. Empirical and theoretical evidence for a preferential gauche arrangement around the NCCF torsion angle (ϕ) is presented ((E)‐2‐fluoro‐N‐(4‐nitrobenzylidene)ethanamine: ϕNCCF=70.0°). In the context of this study, the analysis of a pyridoxal‐derived β‐fluoroaldimine...
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