Materials Data on Na(VS2)2 by Materials Project
Na(VS2)2 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. Na1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Na–S bond distances ranging from 2.86–2.93 Å. There are two inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to six S2- atoms to form edge-sharing VS6 octahedra. There are a spread of V–S bond distances ranging from 2.34–2.48 Å. In the second V+3.50+ site, V+3.50+ is bonded to six S2- atoms to form edge-sharing VS6 octahedra. There are a spread of V–S bond distances ranging from 2.32–2.48 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form a mixture of distorted edge and corner-sharing SNa2V3 square pyramids. In the second S2- site, S2- is bonded to two equivalent Na1+ and three V+3.50+ atoms to form a mixture of distorted edge and corner-sharing SNa2V3 trigonal bipyramids. In the third S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to one Na1+ and three V+3.50+ atoms. In the fourth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to one Na1+ and three V+3.50+ atoms.