[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a hydrate that is the tetrahydrate form of iron dichloride. It is a hydrate, an iron coordination entity and an inorganic chloride. It contains an iron dichloride."}, {"from": "gpt", "value": "[O].[O].[O].[O].[Cl][Fe][Cl]"}]