Materials Data on HgPS3 by Materials Project
HgPS3 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of one HgPS3 sheet oriented in the (0, 0, 1) direction. Hg1+ is bonded to four S2- atoms to form distorted edge-sharing HgS4 tetrahedra. There are a spread of Hg–S bond distances ranging from 2.50–2.78 Å. P5+ is bonded in a trigonal non-coplanar geometry to three S2- atoms. There are a spread of P–S bond distances ranging from 2.02–2.06 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted trigonal non-coplanar geometry to two equivalent Hg1+ and one P5+ atom. In the second S2- site, S2- is bonded in a water-like geometry to one Hg1+ and one P5+ atom. In the third S2- site, S2- is bonded in a water-like geometry to one Hg1+ and one P5+ atom.