[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an acetate salt in which the cationic component is barium(2+). It has a role as a mordant and a catalyst. It is an organic barium salt and an acetate salt."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O-1].[C][C][=Branch1][C][=O][O-1].[Ba+2]"}]