Bis(triethyl-ammonium) bis-(μ-pyrazine-2,3-dithiol-ato)bis-(pyrazine-2, 3-dithio-lato)diferrate(III) methanol disolvate

Abstract

In the title compound, (C6H16N)2[Fe2(C4H2N2S2)4]·2CH4O, the [Fe III(pdt)2]- anion (pdt is pyrazine-2,3-dithiol-ate) forms a centrosymmetric dimer supported by two FeIII - S bonds [Fe - S = 2.4787 (4) Å]. In the crystal structure, dimers form a one-dimensional stack along the b axis via π-π stacking inter-actions, the inter-planar separation between adjacent dimers being 3.51 (2) Å. The methanol solvent mol-ecule is involved in two hydrogen bonds in which the hydroxyl group acts as a hydrogen-bond donor to the N atom of a pdt ligand and the O atom acts as an acceptor for the NH group of the triethyl-ammonium cation.