title: Bis[4-(4-pyridyl)pyridinium] (4-carboxy-pyridine-2,6-dicarboxyl-ato-κO,N,O)(pyridine-2,4,6-tricarboxyl-ato-κO,N,O)ferrate(III) trihydrate.
abstract: In the title salt, (C(10)H(9)N(2))(2)[Fe(C(8)H(2)NO(6))(C(8)H(3)NO(6))]·3H(2)O, the Fe(III) atom is O,N,O'-chelated by dianionic and trianionic ligands in a slightly distorted octa-hedral coordination geometry. The cations and ferrate anions are linked into a layered structure; the layers are connected through the uncoordinated water mol-ecules into a hydrogen-bonded three-dimensional supra-molecular structure. One of the uncoordinated water molecules is disordered around an inversion centre and was refined with half-occupancy for each position.
authors.affiliation: State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Institute of Solid Materials Chemistry, Ningbo University, Zhejiang 315211, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhao
authors.forename: You-Ren
authors.initials: YR
authors.lastname: Dong
authors.forename: Hong-Zhen
authors.initials: HZ
authors.lastname: Xie