[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a chemical compound of hexavalent chromium. It is used mainly in electroplating. Hexavalent chromium is more toxic than other oxidation states of the chromium atom because of its greater ability to enter cells and higher redox potential. (L50)"}, {"from": "gpt", "value": "[O][=Cr][=Branch1][C][=O][=O]"}]