title: Poly[[diaqua-hexa-μ-cyanido-cerium(III)ferrate(III)] dihydrate].
abstract: In the structure of the title complex, {[CeFe(CN)(6)(H(2)O)(2)]·2H(2)O}(n), the Ce(III) and Fe(III) atoms exhibit square anti-prismatic [CeN(6)(H(2)O)(2)] (site symmetry m2m) and octahedral [FeC(6)] (site symmetry 2/m) coordination geometries, respectively. The metal atoms are linked alternately through the cyanide groups, forming a three-dimensional framework in which the {Ce(2)Fe(2)(CN)(4)} puckered square unit is the basic building block. The crystal packing is enforced by O-H⋯O and O-H⋯N hydrogen bonds, including the uncoordinated water molecule which is located on a mirror plane.
authors.forename: Deng-Yong
authors.initials: DY
authors.lastname: Yu
authors.forename: Xiao-Qing
authors.initials: XQ
authors.lastname: Liu
authors.forename: Ai-Hua
authors.initials: AH
authors.lastname: Yuan