Crystal structure of poly[tetra-μ-cyanido-ethanol-bis(2-iodo-pyrazine)-digold(I)iron(II)]

In the title polymeric complex, [Au Fe(CN) (C H IN ) (C H O)] , the Fe cation is coordinated by two iodo-pyrazine mol-ecules, one ethanol mol-ecule and three di-cyano-aurate anions in a distorted N O octa-hedral geometry. In the crystal, the di-cyano-aurate anions bridge the Fe cations to form polymeric chains propagating along the axis direction. Stabilization of the crystal structure is provided by O-H⋯N hydrogen bonds and π-π stacking between parallel iodo-pyrazine rings of neighbouring chains, the centroid-centroid distances being 3.654 (10) and 3.658 (9) Å.