[{"from": "human", "value": "Describe this molecule. [H-1].[Pd+2]"}, {"from": "gpt", "value": "The molecule is a chemical compound of palladium. It has a substantial quantity of hydrogen within its crystal lattice and is used to purify hydrogen gas. Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is found as a free metal alloyed with gold and other platinum group metals and in the rare minerals cooperite and polarite. (L794, A28)"}]