[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. Greenish-blue crystals or granular powder."}, {"from": "gpt", "value": "[C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O].[C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O].[Cu+2]"}]