Materials Data on Nb(PS4)2 by Materials Project

Abstract

P2NbS8 crystallizes in the orthorhombic Cmce space group. The structure is two-dimensional and consists of two P2NbS8 sheets oriented in the (0, 0, 1) direction. Nb5+ is bonded in a 8-coordinate geometry to eight S+1.88- atoms. There are a spread of Nb–S bond distances ranging from 2.52–2.68 Å. P5+ is bonded to four S+1.88- atoms to form edge-sharing PS4 tetrahedra. There are a spread of P–S bond distances ranging from 2.00–2.15 Å. There are five inequivalent S+1.88- sites. In the first S+1.88- site, S+1.88- is bonded in a 2-coordinate geometry to two equivalent Nb5+ and one S+1.88- atom. The S–S bond length is 2.02 Å. In the second S+1.88- site, S+1.88- is bonded in an L-shaped geometry to two equivalent P5+ atoms. In the third S+1.88- site, S+1.88- is bonded in an L-shaped geometry to one Nb5+ and one P5+ atom. In the fourth S+1.88- site, S+1.88- is bonded in an L-shaped geometry to one Nb5+ and one P5+ atom. In the fifth S+1.88- site, S+1.88- is bonded in a 2-coordinate geometry to two equivalent Nb5+ and one S+1.88- atom.