[{"from": "human", "value": "Could you give me a brief overview of this molecule? [O][=Ce][=O]"}, {"from": "gpt", "value": "The molecule is a metal oxide with formula CeO2. It is used for polishing glass, in coatings for infra-red filters to prevent reflection, and as an oxidant and catalyst in organic synthesis. It is a cerium molecular entity and a metal oxide."}]