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Gold(II) trihalide complexes from organogold(III) precursors

AuthorsBaya, Miguel ; Pérez-Bitrián, Alberto; Martínez-Salvador, Sonia ; Martín, Antonio ; Casals, J. M.; Menjón, Babil ; Orduna, Jesús
Issue Date2018
AbstractThe mononuclear gold(II) halide complexes [AuCl3 ]- and [AuBr3 ]- are formed in the gas phase by collision-induced homolytic splitting of the only Au-C bond in the monoalkylgold(III) precursors [CF3 AuX3 ]- . The geometries of the whole series of [AuX3 ]- complexes (X=F, Cl, Br, I) have been calculated by DFT methods. It has also been found that the neutral AuX2 molecules behave as unsaturated species, showing significant affinity for an additional X- ligand. Moreover, in the open-shell [AuX3 ]- anions, homolytic splitting of one of the Au-X bonds and formation of the lower-valent [AuX2 ]- anions is favored over non-reducing halide dissociation. They should therefore be prone to disproportionation.
Publisher version (URL)https://doi.org/10.1002/chem.201705509
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