[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. 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": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C+1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1].[Cl][Sb-1][Branch1][C][Cl][Branch1][C][Cl][Branch1][C][Cl][Branch1][C][Cl][Cl]"}]