Abstract
A series of cationic imidazolinylidene and thiazolinylidene gold(III) complexes was synthesized by the oxidative addition of halogens to the corresponding bis(carbene) gold(I) compounds. Similar reactions with the thiazolyl-derived mono(carbene) gold(I) complex only give mono(carbene) halogold(I) compounds. Quantum mechanical calculations employing the GAUSSIAN92 series of programs at the DFT/HF (hybrid density functional theory) level were carried out for the model complexes [Au{ovbar|CNHCHCHNH} 2Cl 2] + and [Au- CNHCHCHNH ) 2) and compared to the molecular structure of the imidazolinylidene gold(III) compound [Au{ CNMeCHCHN Me} 2Cl 2][CF 3SO 3] as well as an analogous gold(I) complex.
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