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Gold(II) Trihalide Complexes from Organogold(III) Precursors
Author(s) -
Baya Miguel,
PérezBitrián Alberto,
MartínezSalvador Sonia,
Martín Antonio,
Casas José M.,
Menjón Babil,
Orduna Jesús
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201705509
Subject(s) - homolysis , chemistry , disproportionation , halide , trihalide , dissociation (chemistry) , ligand (biochemistry) , molecule , crystallography , photochemistry , inorganic chemistry , catalysis , radical , organic chemistry , biochemistry , receptor
The mononuclear gold(II) halide complexes [AuCl 3 ] − and [AuBr 3 ] − are formed in the gas phase by collision‐induced homolytic splitting of the only Au−C bond in the monoalkylgold(III) precursors [CF 3 AuX 3 ] − . The geometries of the whole series of [AuX 3 ] − complexes (X=F, Cl, Br, I) have been calculated by DFT methods. It has also been found that the neutral AuX 2 molecules behave as unsaturated species, showing significant affinity for an additional X − ligand. Moreover, in the open‐shell [AuX 3 ] − anions, homolytic splitting of one of the Au−X bonds and formation of the lower‐valent [AuX 2 ] − anions is favored over non‐reducing halide dissociation. They should therefore be prone to disproportionation.