[{"from": "human", "value": "Describe this molecule. [P-3].[P-3].[Zn+2].[Zn+2].[Zn+2]"}, {"from": "gpt", "value": "The molecule is a dark gray granular solid. It is slowly decomposed by water giving off phosphine, a flammable poison gas. It is toxic by ingestion. It is used in medicine and as a rat poison."}]