[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a monocarboxylic acid anion that is the conjugate base of 3-(trimethylsilyl)propionic acid, obtained by deprotonation of the carboxy group. It is a conjugate base of a 3-(trimethylsilyl)propionic acid."}, {"from": "gpt", "value": "[C][Si][Branch1][C][C][Branch1][C][C][C][C][C][=Branch1][C][=O][O-1]"}]