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From achiral imidazolinium salts, chiral transition metal complexes containing an N‐heterocyclic carbene (NHC) ligand were prepared (metal = palladium, copper, silver, gold, rhodium). Axial chirality in these complexes results from the formation of the metal‐carbene bond leading to the restriction of rotation of dissymmetric N‐aryl substituents about the C–N bond. When these complexes exhibited a...
Heart of gold (or silver): The pseudo‐D2d distorted MPd14 cubic kernel of [(μ14‐M)Pd22(CO)20(PEt3)8]+ cations, with M=Au (1), Ag (2), has an encapsulated M atom (see picture; yellow) coordinated to eight cubic corner (black) and six face‐capping Pd atoms (gray). Compounds 1 and 2 were obtained (28–60 % yields) from two‐step/one‐pot reactions of a Pd10 precursor with CF3CO2H followed by coinage‐metal...
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