Acta Cryst. (2008). E64, m1148-m1149  [ doi:10.1107/S1600536808023830 ]

catena-Poly[[[-cyanido-1:2²C:N-tricyanido-1³C-bis(ethylenediamine)-2⁴N,N'-copper(II)iron(II)]--cyanido-²C:N-[bis(ethylenediamine-²N,N')copper(II)]--cyanido-²N:C] 4.5-hydrate]

H. Liu and D. Wang

Abstract: The asymmetric unit of the title compound, {[Cu₂Fe(CN)₆(C₂H₈N₂)₄]·4.5H₂O}_n, consists of two [Cu(C₂H₈N₂)₂]²⁺ cations, one [Fe(CN)₆]^4- anion, four water molecules and a half water molecule that lies on a twofold rotation axis. The Fe^II atom is coordinated by six C atoms from three terminal and three doubly bridging CN^- ligands. The bridging CN^- ligands connect the anion to a five-coordinate [Cu(C₂H₈N₂)₂]²⁺ cation and to two symmetry-related six-coordinate [Cu(C₂H₈N₂)₂]²⁺ cations, forming a one-dimensional polymer in the ab plane. Intermolecular hydrogen bonds connect the polymer units into a three-dimensional network.

Online 9 August 2008

Copyright © International Union of Crystallography
IUCr Webmaster