[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a colorless odorless aqueous solution. Sinks and mixes with water. (USCG, 1999)"}, {"from": "gpt", "value": "[B-1][Branch1][C][F][Branch1][C][F][Branch1][C][F][F].[B-1][Branch1][C][F][Branch1][C][F][Branch1][C][F][F].[Cd+2]"}]