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Gold compounds are compounds by the element gold (Au). Although gold is the most noble of the noble metals , [ 1 ] [ 2 ] it still forms many diverse compounds. The oxidation state of gold in its compounds ranges from −1 to +5, but Au(I) and Au(III) dominate its chemistry.
Template:Gold compounds This page was last edited on 4 January 2024, at 11:49 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
Gold monoiodide is the inorganic compound of gold and iodine with the formula AuI. It can be synthesized by dissolving gold powder in an aqueous solution of iodine and potassium iodide . [ 3 ] With Lewis bases, AuI reacts to give numerous complexes .
Gold(III) chloride is the starting point for the chemical synthesis of many other gold compounds. For example, the reaction with potassium cyanide produces the water-soluble complex, K[Au(CN) 4]: [20] AuCl 3 + 4 KCN → K[Au(CN) 4] + 3 KCl. Gold(III) fluoride can be also produced from gold(III) chloride by reacting it with bromine trifluoride. [15]
Gold(III) oxide (Au 2 O 3) is an inorganic compound of gold and oxygen with the formula Au 2 O 3.It is a red-brown solid that decomposes at 298 °C. [3]According to X-ray crystallography, Au 2 O 3 features square planar gold centers with both 2- and 3-coordinated oxides.
Gold(I) sulfide is the inorganic compound with the formula Au 2 S. It is the principal sulfide of gold. It decomposes to gold metal and elemental sulfur, illustrating ...
Organogold chemistry is the study of compounds containing gold–carbon bonds. They are studied in academic research, but have not received widespread use otherwise. The dominant oxidation states for organogold compounds are I with coordination number 2 and a linear molecular geometry and III with CN = 4 and a square planar molecular geometry.
Gold(I) sulfide, Au 2 S. Formed by reaction of hydrogen sulfide with gold(I) compounds. Gold(III) sulfide, Au 2 S 3, claimed material but unsubstantiated. Gold tellurides: Au 2 Te 3, Au 3 Te 5, and AuTe 2 (approximate formulas) are known as non-stoichiometric compounds. They show metallic conductivity. Au 3 Te 5 is a superconductor at 1.62 K. [1]