[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a divalent inorganic anion obtained by removal of both protons from dichromic acid. It is a chromium oxoanion and a divalent inorganic anion. It is a conjugate base of a hydrogen dichromate."}, {"from": "gpt", "value": "[O-1][Cr][=Branch1][C][=O][=Branch1][C][=O][O][Cr][=Branch1][C][=O][=Branch1][C][=O][O-1]"}]