Gold(II) complexes are rare, and their application to the catalysis of chemical transformations is underexplored. The reason is their easy oxidation or reduction to more stable gold(III) or gold(I) complexes, respectively. We explored the thermodynamics of the formation of [AuII (L)(X)]+ complexes (L=ligand, X=halogen) from the corresponding gold(III) precursors and investigated their stability and spectral properties in the IR and visible range in the gas phase. The results show that the best ancillary ligands L for stabilizing gaseous [AuII (L)(X)]+ complexes are bidentate and tridentate ligands with nitrogen donor atoms. The electronic structure and spectral properties of the investigated gold(II) complexes were correlated with quantum chemical calculations. The results show that the molecular and electronic structure of the gold(II) complexes as well as their spectroscopic properties are very similar to those of analogous stable copper(II) complexes.

• Klíčová slova
• density functional calculations, electronic spectroscopy, gold, mass spectrometry, vibrational spectroscopy,
• MeSH
• dusík MeSH
• halogeny MeSH
• kationty MeSH
• krystalografie rentgenová MeSH
• ligandy MeSH
• měď * chemie   MeSH
• teoretické modely MeSH
• zlato * chemie   MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• dusík MeSH
• halogeny MeSH
• kationty MeSH
• ligandy MeSH
• měď * MeSH
• zlato * MeSH