Tetranitratogoldsäure, (H5O2)[Au(NO3)4]·H2O: Synthese,Kristallstruktur und thermisches Verhalten des ersten sauren Nitrates des Goldes |
| |
Authors: | Oliver Büchner Mathias S Wickleder |
| |
Abstract: | Tetranitratogold(III) Acid, (H5O2)Au(NO3)4]·H2O: Synthesis, Crystal Structure, and Thermal Behaviour of the First Acidic Nitrate of Gold Yellow single crystals of (H5O2)Au(NO3)4]·H2O grow upon cooling of a solution of Au(OH)3 in conc. nitric acid. The crystal structure contains (monoclinic, C2/c, Z = 4, a = 1214.5(2), b = 854.4(1), c = 1225.7(2) pm, β = 117.75(1)°, Rall = 0.0331) the Au3+ ion in coordination of four monodentate NO3— ligands. The Au(NO3)4]— units are linked by H5O2+‐ions. Significant hydrogen bonding is observed in the crystal structure between the H5O2+ ions and the H2O molecules. The thermal analysis reveals a five step decomposition leading to elemental gold. |
| |
Keywords: | Gold Nitrate Thermal behaviour |
|
|