Materials Data on NaV2(SO)4 by Materials Project
NaO2(VS2O)2 crystallizes in the monoclinic P2/m space group. The structure is two-dimensional and consists of one sodium hydroxide monohydrate molecule and one VS2O sheet oriented in the (0, 0, 1) direction. In the VS2O sheet, there are two inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to six S atoms to form edge-sharing VS6 octahedra. There are two shorter (2.35 Å) and four longer (2.43 Å) V–S bond lengths. In the second V+3.50+ site, V+3.50+ is bonded to six S atoms to form edge-sharing VS6 octahedra. There are two shorter (2.41 Å) and four longer (2.50 Å) V–S bond lengths. There are two inequivalent S sites. In the first S site, S is bonded in a distorted single-bond geometry to three V+3.50+ and one O2- atom. The S–O bond length is 1.58 Å. In the second S site, S is bonded in a 1-coordinate geometry to three V+3.50+ atoms. O2- is bonded in a single-bond geometry to one S atom.