[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a white crystalline solid. Noncombustible. Corrosive to metals in the presence of moisture. Toxic by ingestion."}, {"from": "gpt", "value": "[O][=As][=Branch1][C][=O][O][As][=Branch1][C][=O][=O]"}]