[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a chemical compound of antimony. Antimony is a metallic element with the chemical symbol Sb and atomic number 51. Small amounts of antimony are found in the earth's crust. (L741, L808)."}, {"from": "gpt", "value": "[F-1].[F-1].[F-1].[F-1].[F-1].[F-1].[K+1].[Sb]"}]