SMILES: [O-]P(=O)([O-])OP(=O)([O-])[O-].[O-]P(=O)([O-])OP(=O)([O-])[O-].[O-]P(=O)([O-])OP(=O)([O-])[O-].[Fe+3].[Fe+3].[Fe+3].[Fe+3]
Description: The molecule is an iron coordination entity composed from Fe(3+) cations and diphosphate(4-) anions in a 4:3 ratio. It contains a diphosphate(4-).