Crystal structure of poly[tetra-μ2-cyanido-1:2κ8N: C-bis-(dimethyl sulfoxide-1κ O)diargentate(I)iron(II)]

Acta Crystallogr E Crystallogr Commun. 2017 Jan 27;73(Pt 2):270-272. doi: 10.1107/S2056989017001049. eCollection 2017 Feb 1.

Abstract

In the title polymeric complex, [Fe{OS(CH3)2}2{Ag(CN)2}2], the FeII cation is located at an inversion centre and is coordinated by four cyanide (CN-) anions and two dimethyl sulfoxide mol-ecules in a slightly compressed N4O2 octa-hedral geometry, the AgI cation is C-coordinated by two CN- anions in a nearly linear geometry. The CN- anions bridge the FeII and AgI cations to form a two-dimensional polymeric structure extending parallel to (102). In the crystal, the nearest Ag⋯Ag distance between polymeric sheets is 3.8122 (12) Å. The crystal studied was a twin with a contribution of 0.2108 (12) for the minor component.

Keywords: FeII complex; Hofmann clathrate analogue; crystal structure; di­cyanido­argentate; metal–organic framework.