Resumen: The 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 [CF3AuX3]-. 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. Idioma: Inglés DOI: 10.1002/chem.201705509 Año: 2018 Publicado en: Chemistry - A European Journal 24, 7 (2018), 1514-1517 ISSN: 0947-6539 Factor impacto JCR: 5.16 (2018) Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 36 / 172 = 0.209 (2018) - Q1 - T1 Factor impacto SCIMAGO: 1.842 - Catalysis (Q1) - Organic Chemistry (Q1) - Chemistry (miscellaneous) (Q1)