Materials Data on PrS2 by Materials Project

Abstract

PrS2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pr4+ is bonded in a 9-coordinate geometry to nine S2- atoms. There are a spread of Pr–S bond distances ranging from 2.88–3.21 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded to five equivalent Pr4+ atoms to form a mixture of distorted corner and edge-sharing SPr5 trigonal bipyramids. In the second S2- site, S2- is bonded in a 5-coordinate geometry to four equivalent Pr4+ and one S2- atom. The S–S bond length is 2.12 Å. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four equivalent Pr4+ and one S2- atom.