A ferric-cyanide-bridged one-dimensional dirhodium complex with (18-crown-6)potassium cations

Abstract

The crystal structure of the title compound, catena-poly[bis-[aqua(18-crown-6)potassium] diaqua(18-crown-6)potassium [[tetra-μ-benzoato-2:3κ8O:O′-μ-cyano- 1:2κ2C:N-tetracyano-1κC-irondirhodium(Rh-Rh)]-μ-cyano- 1κC:3′κN] octahydrate], [K(18-crown-6) (H2O)]2[K(18-crown-6)(H2O)2] [FeRh2-(C7H5O2)4 (CN)6]·8H2O, where (18-crown-6) is 1,4,7,10,13,16-hexaoxacyclooctadecane (C12H24O6), has been determined. Ferric cyanides connect the dirhodium units to form a one-dimensional chain compound. [K(18-crown-6-ether)(H2O)2] cations (with inversion symmetry) and [K(18-crown-6-ether)(H2O)] cations (in general positions) are located between the chains.