Gold chalcogenides

Class of chemical compound

Gold chalcogenides are compounds formed between gold and one of the chalcogens, elements from group 16 of the periodic table: oxygen, sulfur, selenium, or tellurium.Gold(III) oxide, Au2O3. Decomposes into gold and oxygen above 160 °C, and dissolves in concentrated alkalis to form solutions which probably contain the [Au(OH)4]− ion Gold(I) sulfide, Au2S. Formed by reaction of hydrogen sulfide with gold(I) compounds. Gold(III) sulfide, Au2S3, claimed material but unsubstantiated. Gold tellurides: Au2Te3, Au3Te5, and AuTe2 (approximate formulas) are known as non-stoichiometric compounds. They show metallic conductivity. Au3Te5 is a superconductor at 1.62 K.

This keyword could refer to multiple things. Here are some suggestions: