[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a monocarboxylic acid anion that is obtained by removal of a proton from the carboxylic acid group of difluoroacetic acid. It is a monocarboxylic acid anion and an organofluorine compound. It is functionally related to an acetate. It is a conjugate base of a difluoroacetic acid."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][Branch1][C][F][F]"}]