[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a beta-diketone that is pentane in which the hydrogens at positions 2 and 4 are replaced by oxo groups. It is a conjugate acid of an acetylacetonate."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][C][=Branch1][C][=O][C]"}]