[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a solid."}, {"from": "gpt", "value": "[C-1][#N].[C-1][#N].[C-1][#N].[C-1][#N].[C-1][#N].[C-1][#N].[NH4+1].[Fe+2].[Fe+3]"}]