Crystal Growth and Crystal Structures of Gold(V) Compounds: Cu(AuF ₆ ) ₂ , Ag(AuF ₆ ) ₂ , and O ₂ (CuF) ₃ (AuF ₆ ) ₄ ⋅ HF

Crystal growth from anhydrous hydrogen fluoride solutions of M2+ (M=Cu, Ag) and [AuF6]− gave M(AuF6)2 salts Ag). Similar attempts to prepare single crystals the corresponding nickel, zinc magnesium failed. The crystal structure Cu(AuF6)2 consists layers Cu2+ cations connected by anions, thus forming slabs. Only van der Waals interactions exist between adjacent Ag(AuF6)2 a three-dimensional framework in which Ag+ are linked anions. Both structures members MII(XVF6)2 family, seven different types have been observed date. In O2(CuF)3(AuF6)4 ⋅ HF, bridging AuF6 units connect [−Cu−F−Cu−F−]∞ chains form stacks O2+ HF molecules located.