[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a phosphonic ester."}, {"from": "gpt", "value": "[C][C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][C][C][C][C][C][C][C][P][=Branch1][C][=O][Branch1][Ring1][O][C][F]"}]