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DOE OSTI2020

Materials Data on Rb2Nb2P2S11 by Materials Project

Rb2Nb2P2S11 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 10-coordinate geometry to ten S2- atoms. There are a spread of Rb–S bond distances ranging from 3.44–4.03 Å. In the second Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Rb–S bond distances ranging from 3.54–3.84 Å. Nb5+ is bonded to seven S2- atoms to form distorted NbS7 pentagonal bipyramids that share an edgeedge with one NbS7 pentagonal bipyramid, edges with two PS4 tetrahedra, and a faceface with one NbS7 pentagonal bipyramid. There are a spread of Nb–S bond distances ranging from 2.36–2.77 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four S2- atoms to form PS4 tetrahedra that share edges with two equivalent NbS7 pentagonal bipyramids. There are one shorter (1.99 Å) and three longer (2.07 Å) P–S bond lengths. In the second P5+ site, P5+ is bonded to four S2- atoms to form PS4 tetrahedra that share edges with two equivalent NbS7 pentagonal bipyramids. There are a spread of P–S bond distances ranging from 2.01–2.11 Å. There are nine inequivalent S2- sites. In the first S2- site, S2- is bonded in a 8-coordinate geometry to two equivalent Nb5+ and one S2- atom. The S–S bond length is 2.01 Å. In the second S2- site, S2- is bonded in a distorted single-bond geometry to four equivalent Rb1+ and one P5+ atom. In the third S2- site, S2- is bonded in a distorted L-shaped geometry to two equivalent Rb1+, one Nb5+, and one P5+ atom. In the fourth S2- site, S2- is bonded in a 2-coordinate geometry to one Rb1+ and two equivalent Nb5+ atoms. In the fifth S2- site, S2- is bonded in a 1-coordinate geometry to four equivalent Rb1+ and one P5+ atom. In the sixth S2- site, S2- is bonded in a 4-coordinate geometry to one Rb1+, two equivalent Nb5+, and one S2- atom. In the seventh S2- site, S2- is bonded in a distorted trigonal pyramidal geometry to one Rb1+, two equivalent Nb5+, and one P5+ atom. In the eighth S2- site, S2- is bonded in a 4-coordinate geometry to one Rb1+, two equivalent Nb5+, and one P5+ atom. In the ninth S2- site, S2- is bonded in a distorted L-shaped geometry to one Rb1+, one Nb5+, and one P5+ atom.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on RbNb2PS10 by Materials Project

RbNb2PS10 crystallizes in the monoclinic Pc space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight S+1.60- atoms. There are a spread of Rb–S bond distances ranging from 3.51–4.10 Å. There are two inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to eight S+1.60- atoms to form NbS8 hexagonal bipyramids that share an edgeedge with one PS4 tetrahedra and faces with two equivalent NbS8 hexagonal bipyramids. There are a spread of Nb–S bond distances ranging from 2.49–2.66 Å. In the second Nb5+ site, Nb5+ is bonded to eight S+1.60- atoms to form NbS8 hexagonal bipyramids that share an edgeedge with one PS4 tetrahedra and faces with two equivalent NbS8 hexagonal bipyramids. There are a spread of Nb–S bond distances ranging from 2.50–2.66 Å. P5+ is bonded to four S+1.60- atoms to form PS4 tetrahedra that share edges with two NbS8 hexagonal bipyramids. There are a spread of P–S bond distances ranging from 1.98–2.11 Å. There are ten inequivalent S+1.60- sites. In the first S+1.60- site, S+1.60- is bonded in a 1-coordinate geometry to two equivalent Rb1+ and one P5+ atom. In the second S+1.60- site, S+1.60- is bonded in a 2-coordinate geometry to one Rb1+, one Nb5+, and one P5+ atom. In the third S+1.60- site, S+1.60- is bonded in a 2-coordinate geometry to two Nb5+ and one S+1.60- atom. The S–S bond length is 2.03 Å. In the fourth S+1.60- site, S+1.60- is bonded in a 3-coordinate geometry to two Nb5+ and one S+1.60- atom. In the fifth S+1.60- site, S+1.60- is bonded in a 4-coordinate geometry to one Rb1+, two Nb5+, and one S+1.60- atom. The S–S bond length is 2.04 Å. In the sixth S+1.60- site, S+1.60- is bonded in a 4-coordinate geometry to one Rb1+, two Nb5+, and one S+1.60- atom. In the seventh S+1.60- site, S+1.60- is bonded in a 3-coordinate geometry to one Rb1+, two Nb5+, and one S+1.60- atom. The S–S bond length is 2.05 Å. In the eighth S+1.60- site, S+1.60- is bonded in a 2-coordinate geometry to one Rb1+, two Nb5+, and one S+1.60- atom. In the ninth S+1.60- site, S+1.60- is bonded in a distorted L-shaped geometry to one Rb1+, one Nb5+, and one P5+ atom. In the tenth S+1.60- site, S+1.60- is bonded in a 3-coordinate geometry to two Nb5+ and one P5+ atom.

36 MATERIALS SCIENCE↗