[{"from": "human", "value": "Provide a description of this molecule. [C][=Branch1][C][=O][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O-1].[Cu+2]"}, {"from": "gpt", "value": "The molecule is an odorless bluish-white solid. Denser than water and insoluble in water. Hence sinks in water. Used as a catalysts for organic reactions."}]