title: Tris(ethyl-enediammonium) bis-[(2-amino-ethyl)ammonium] bis-[bis-(μ(5)-hydrogen phosphato)penta-μ(2)-oxido-deca-oxido-penta-molybdenum(VI)] deca-hydrate.
abstract: The title compound, (C(2)H(10)N(2))(3)(C(2)H(9)N(2))(2)[Mo(5)(HPO(4))(2)O(15)]·10H(2)O, was prepared under hydro-thermal conditions at pH 5.0. The structure contains mono- and diprotonated ethyl-enediamine cations, [Mo(5)O(15)(HPO(4))(2)](4-) anions and uncoord-in-ated water mol-ecules. The [Mo(5)O(15)(HPO(4))(2)](4-) hetero-poly-oxometallate anion is made up of five MoO(6) octa-hedra sharing an edge and forming a ring, which is closed by common corners of the terminal MoO(6) octa-hedron. The ring is topped on both sides by two slightly distorted PO(4) tetra-hedra, sharing three corners with three MoO(6) octa-hedra. The terminal oxygen atoms of the PO(4) units are protonated. Together with the anions, the water mol-ecules and the ethyl-enediammonium cations are involved in N-H⋯O and O-H⋯O hydrogen bonding, forming a three-dimensional supra-molecular network.
authors.affiliation: School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Lu
authors.forename: Hao
authors.initials: H
authors.lastname: Song
authors.forename: Da-Qi
authors.initials: DQ
authors.lastname: Wang
authors.forename: Mei-Ju
authors.initials: MJ
authors.lastname: Niu