title: (Mu-oxalato-O1,O2:O1',O2')bis[aqua(diethylenetriamine)nickel(II)] bis(hexafluorophosphate) dihydrate.
abstract: The title compound, [Ni(2)(C(2)O(4))(C(4)H(13)N(3))(2)(H(2)O)(2)](PF(6))(2).2H(2)O, contains a dinuclear oxalato-bridged nickel(II) complex cation. The structure determination reveals the presence of a centrosymmetric binuclear complex where the oxalate ligand is coordinated in a bis-bidentate mode to the Ni atoms. The distorted octahedral environment of each Ni atom is completed by the three N atoms of the diethylenetriamine ligand in a fac arrangement and by one O atom from a water molecule. PF(6)(-) acts as counter-anion. A two-dimensional network of hydrogen bonds links the cations and anions and stabilizes the structure.
authors.affiliation: Departamento de Química Inorgánica, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, E-48080 Bilbao, Spain.
authors.forename: Iñaki
authors.initials: I
authors.lastname: Muga
authors.forename: Pablo
authors.initials: P
authors.lastname: Vitoria
authors.forename: Juan M
authors.initials: JM
authors.lastname: Gutiérrez-Zorrilla
authors.forename: Antonio
authors.initials: A
authors.lastname: Luque
authors.forename: Carmen
authors.initials: C
authors.lastname: Guzmán-Miralles
authors.forename: Pascual
authors.initials: P
authors.lastname: Román