Bis(ethyl­enedi­ammonium) μ-ethyl­enedi­aminetetra­acetato-1κ3O,N,O′:2κ3O′′,N′,O′′′-bis­[tri­oxidomolybdate(VI)] tetra­hydrate

• Published in: IUCrData Vol. 9; no. Pt 7
• Main Authors: Yaffa, Lamine, Seye, Dame, Kama, Antoine Blaise, Toure, Assane, Diop, Cheikh Abdoul Khadir
• Format: Journal Article
• Language: English
• Published: International Union of Crystallography 12.07.2024
• Subjects: Data Reports
• ISSN: 2414-3146
• DOI: 10.1107/S2414314624006679

The title compound is a binuclear complex of molybdenum with a ethyl­enedi­amine­tretra­acetate ligand bridging two MoO 3 units. The title compound, (C 2 H 10 N 2 ) 2 [(C 10 H 12 N 2 O 8 )(MoO 3 ) 2 ]·4H 2 O, which crystallizes in the monoclinic C 2/ c space group, was obtained by mixing molybdenum oxide, ethyl­enedi­amine and ethyl­enedi­amine­tetra­acetic acid (H 4 edta) in a 2:4:1 ratio. The complex anion contains two MoO 3 units bridged by an edta 4− anion. The midpoint of the central C—C bond of the edta 4− anion is located on a crystallographic inversion centre. The independent Mo atom is tridentately coordin­ated by a nitro­gen atom and two carboxyl­ate groups of the edta 4− ligand, together with the three oxo ligands, producing a distorted octa­hedral coordination environment. In the three-dimensional supra­molecular crystal structure, the dinuclear anions, the organo­ammonium counter-ions and the solvent water mol­ecules are linked by N—H⋯O w , N—H⋯O edta and O—H⋯O hydrogen bonds.