Xenon as a Complex Ligand: The Tetra Xenono Gold(Ⅱ) Cation in AuXe_4~(2+)(Sb_2F_(11)~-)_2

摘要

The first metal-xenon compound with direct gold-xenon bonds is achieved by reduction of AuF_3 with elemental xenon. The square planar AuXe_4~(2+) cation is established by a single-crystal structure determination, with a gold-xenon bond length of approximately 274 picometers. The bonding between gold and xenon is of the cr donor type, resulting in a charge of approximately 0.4 per xenon atom.