Materials Data on FeH6SO6 by Materials Project
FeH6SO6 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one FeH6SO6 sheet oriented in the (1, 0, 0) direction. Fe2+ is bonded to six O2- atoms to form edge-sharing FeO6 octahedra. There are a spread of Fe–O bond distances ranging from 2.09–2.26 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. S4+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of S–O bond distances ranging from 1.54–1.57 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Fe2+ and one S4+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Fe2+ and one S4+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one S4+ atom. In the fourth O2- site, O2- is bonded in a water-like geometry to one Fe2+ and two H1+ atoms. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one Fe2+ and two H1+ atoms. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one Fe2+ and two H1+ atoms.