[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a hydrate of nickel chloride containing nickel (in the +2 oxidation state), chloride and water moeities in the ratio 1:2:6. It has a role as a sensitiser. It contains a nickel dichloride."}, {"from": "gpt", "value": "[O].[O].[O].[O].[O].[O].[Cl-1].[Cl-1].[Ni+2]"}]