[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a monocarboxylic acid anion that results from the removal of a proton from the carboxylic acid group of 3-chloroacrylic acid. It is a conjugate base of a 3-chloroacrylic acid."}, {"from": "gpt", "value": "[C][=Branch1][Ring1][=C][/Cl][\\C][=Branch1][C][=O][O-1]"}]